Equity [Abstract]
Number of Unvested Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Forfeitures (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Ending balance (in shares)
Weighted Average Grant Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Beginning balance (in usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Granted (in usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Vested (in usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Forfeitures (in usd per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Ending balance (in usd per share)
Aggregate Grant Date Fair Value of Unvested Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]
Aggregate grant date fair value of shares, Beginning balance
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding
Aggregate grant date fair value of shares, Granted
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Aggregate Intrinsic Value, Granted
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Aggregate Intrinsic Value, Granted
Aggregate grant date fair value of shares, Vested
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested
Aggregate grant date fair value of shares, Forfeitures
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Aggregate Intrinsic Value, Forfeited
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Aggregate Intrinsic Value, Forfeited
Aggregate grant date fair value of shares, Ending balance
Revenue from Contract with Customer [Abstract]
Revenue Recognition
Revenue from Contract with Customer [Text Block]
Expected dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Aggregate outstanding stock options (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number
Outstanding stock options, weighted average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Exercisable stock options (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number
Exercisable stock options, weighted average remaining contractual term
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Fair value of shares vested
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Fair value of options exercised during period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value
Share-based compensation
Share-based Payment Arrangement, Noncash Expense
Stock-based compensation expense not yet recognized
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Weighted average remaining service period
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
Employee Director Compensation Plan
Employee Director Compensation Plan [Member]
Employee Director Compensation Plan [Member]
Title of Individual [Axis]
Title of Individual [Axis]
Title of Individual [Domain]
Title of Individual [Domain]
Employees
Employees [Member]
Employees [Member]
Directors
Director [Member]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
Restricted Stock Units (RSUs)
Restricted Stock Units (RSUs) [Member]
Vesting [Axis]
Vesting [Axis]
Vesting [Domain]
Vesting [Domain]
Vest in three equal annual installments on the anniversary dates of grant
Share-based Payment Arrangement, Tranche One [Member]
Vest based on levels of 2201 revenue and operating income
Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of vesting installments
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Number Of Vesting Installments
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Number Of Vesting Installments
Shares issued (in shares)
Shares not yet vested (in shares)
Target performance as as percent of revenue and operating income
Share-based Compensation Arrangement by Share-Based Payment Award, Award Vesting Right, Target Performance As Percent Of Revenue And Operating Income
Share-based Compensation Arrangement by Share-Based Payment Award, Award Vesting Right, Target Performance As Percent Of Revenue And Operating Income
Payout of shares upon achievement of target performance
Share-based Compensation Arrangement by Share-Based Payment Award, Award Vesting Right, Target Performance Payout On Revenue And Operating Income Target
Share-based Compensation Arrangement by Share-Based Payment Award, Award Vesting Right, Target Performance Payout On Revenue And Operating Income Target
Shares vested (in shares)
Vesting period, earlier of grant anniversary, or annual stockholders' meeting
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Amount authorized under share repurchase program
Stock Repurchase Program, Authorized Amount
Shares repurchased and maintained as treasury stock (in shares)
Treasury Stock, Shares, Acquired
Value of shares repurchased and maintained as treasury stock
Treasury Stock, Value, Acquired, Cost Method
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, authorized (in shares)
Preferred Stock, Shares Authorized
Preferred stock, issued (in shares)
Preferred Stock, Shares Issued
Preferred stock, outstanding (in shares)
Preferred Stock, Shares Outstanding
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, authorized (in shares)
Common Stock, Shares Authorized
Common stock, issued (in shares)
Common Stock, Shares, Issued
Common stock, outstanding (in shares)
Common Stock, Shares, Outstanding
Treasury Stock (in shares)
Treasury Stock, Shares
Leases [Abstract]
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Office equipment
Office Equipment [Member]
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Operating leases contract terms
Lessee, Operating Lease, Term of Contract
Finance leases contract terms
Lessee, Finance Lease, Term of Contract
Useful life
Property, Plant and Equipment, Useful Life
Payables and Accruals [Abstract]
Accrued compensation
Employee-related Liabilities, Current
Income tax payable
Accrued Income Taxes, Current
Accrued professional fees
Accrued Professional Fees, Current
Deferred Rent
Accrued Rent, Current
Current operating lease liability
Operating Lease, Liability, Current
Current finance lease liability
Finance Lease, Liability, Current
Royalties
Accrued Royalties, Current
Accrued liabilities - other
Other Accrued Liabilities, Current
Customer deposits
Due to Related Parties, Current
Contingent liability - GP
Loss Contingency, Accrual, Current
Working capital adjustment - MOI
Working Capital Adjustment, Current
Working Capital Adjustment, Current
Total accrued liabilities
Accrued Liabilities, Current
Discontinued Operations and Disposal Groups [Abstract]
Net revenues
Disposal Group, Including Discontinued Operation, Revenue
Cost of revenues
Disposal Group, Including Discontinued Operation, Costs of Goods Sold
Operating expenses
Disposal Group, Including Discontinued Operation, Operating Expense
Other income
Disposal Group, Including Discontinued Operation, Other Income
Other income
Disposal Group, Including Discontinued Operation, Other Expense
Income before income taxes
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, before Income Tax
Allocated tax expense
Discontinued Operation, Tax Effect of Income (Loss) from Discontinued Operation During Phase-out Period
Operating (loss)/income from discontinued operations
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax
Gain on sale, net of related income taxes
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax
Net income from discontinued operations
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Accounting Policies [Abstract]
Common stock equivalents included in diluted per share data (in shares)
Weighted Average Number Diluted Shares Outstanding Adjustment
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Technology development
Technology Development Segment [Member]
Technology Development Segment [Member]
Products and licensing
Product And Licensing Segment [Member]
Product and Licensing Segment [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation
Revenue, Remaining Performance Obligation, Amount
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill
Goodwill Disclosure [Text Block]
Income Tax Disclosure [Abstract]
Income Taxes
Income Tax Disclosure [Text Block]
Business Combinations [Abstract]
Allocation of Purchase Consideration
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
Schedule of Preliminary Identifiable Intangible Assets Acquired and their Estimated Lives
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]
Unaudited Pro Forma Financial Information
Business Acquisition, Pro Forma Information [Table Text Block]
Debt Disclosure [Abstract]
Summary of Debt Outstanding
Schedule of Debt [Table Text Block]
Discontinued Operations
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Number of operating segments
Number of Operating Segments
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
United States
UNITED STATES
Asia
Asia [Member]
Europe
Europe [Member]
Canada, Central and South America
Canada, Central, And South America [Member]
Canada, Central, And South America [Member]
All Others
Other Countries [Member]
Other Countries [Member]
Customer [Axis]
Customer [Axis]
Customer [Domain]
Customer [Domain]
Sales to the U.S. government
United States Government [Member]
United States Government [Member]
U.S. direct commercial sales and other
United States Direct Commercial Sales And Other [Member]
United States Direct Commercial Sales And Other [Member]
Foreign commercial sales & other
Foreign Commercial Sales And Other [Member]
Foreign Commercial Sales And Other [Member]
Contract with Customer, Basis of Pricing [Axis]
Contract with Customer, Basis of Pricing [Axis]
Contract with Customer, Basis of Pricing [Domain]
Contract with Customer, Basis of Pricing [Domain]
Fixed-price contracts
Fixed-price Contract [Member]
Cost-type contracts
Cost-Type Contract [Member]
Cost-Type Contract [Member]
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Axis]
Timing of Transfer of Good or Service [Domain]
Timing of Transfer of Good or Service [Domain]
Goods transferred at a point in time
Transferred at Point in Time [Member]
Goods/services transferred over time
Transferred over Time [Member]
Product and Service [Axis]
Product and Service [Axis]
Product and Service [Domain]
Product and Service [Domain]
Technology development
Products And Services, Technology Development [Member]
Products And Services, Technology Development [Member]
Optical test and measurement systems
Products And Services, Optical Test And Measurement Systems [Member]
Products And Services, Optical Test And Measurement Systems [Member]
Other
Products And Services, Other [Member]
Products And Services, Other [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Total revenues
Revenue from Contract with Customer, Excluding Assessed Tax
Subsequent Events [Abstract]
Subsequent Event
Subsequent Events [Text Block]
Statement of Cash Flows [Abstract]
Cash flows provided by/(used in) operating activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income
Net Income (Loss) Attributable to Parent
Adjustments to reconcile net income to net cash provided by/(used in) operating activities
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
Bad debt expense
Accounts Receivable, Credit Loss Expense (Reversal)
Gain on disposal of fixed assets
Gain (Loss) on Disposition of Property Plant Equipment
Gain on sale of discontinued operations
Tax benefit from release of valuation allowance
Excess Tax Benefit from Share-based Compensation, Operating Activities
Change in assets and liabilities
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable
Increase (Decrease) in Accounts Receivable
Contract assets
Increase (Decrease) in Contract with Customer, Asset
Inventory
Increase (Decrease) in Inventories
Other current assets
Increase (Decrease) in Other Current Assets
Other long term assets
Increase (Decrease) in Other Noncurrent Assets
Accounts payable and accrued expenses
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Contract liabilities
Increase (Decrease) in Contract with Customer, Liability
Net cash provided by/(used in) operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows (used in)/provided by investing activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Acquisition of property and equipment
Payments to Acquire Property, Plant, and Equipment
Intangible property costs
Payments to Acquire Intangible Assets
Proceeds from sale of property and equipment
Proceeds from Sale of Property, Plant, and Equipment
Proceeds from sales of discontinued operations
Proceeds from Divestiture of Businesses
Acquisition of General Photonics Corporation
Payments to Acquire Businesses, Gross
Net cash (used in)/provided by investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows used in financing activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Payments on finance lease obligations
Repayments of Long-term Capital Lease Obligations
Payments of debt obligations
Repayments of Debt
Repurchase of common stock
Payments for Repurchase of Common Stock
Proceeds from the exercise of options and warrants
Proceeds from Issuance or Sale of Equity
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Net (decrease)/increase in cash and cash equivalents
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Cash and cash equivalents—beginning of period
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Cash and cash equivalents—end of period
Supplemental disclosure of cash flow information
Supplemental Cash Flow Information [Abstract]
Cash paid for interest
Interest Paid, Excluding Capitalized Interest, Operating Activities
Cash paid for income taxes
Income Taxes Paid
Non-cash investing and financing activities
Noncash Investing and Financing Items [Abstract]
Contingent liability for business combination
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability
Dividend on preferred stock, 59,469 shares of common stock issuable for each of the nine months ended September 30, 2019 and 2018
Dividend On Preferred Stock, Value Of Common Stock Issuable
Dividend On Preferred Stock, Value Of Common Stock Issuable
Inventory Disclosure [Abstract]
Components of Inventory
Schedule of Inventory, Current [Table Text Block]
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Balance as of December 31, 2018
Goodwill
Goodwill resulting from business combination - GP
Goodwill, Acquired During Period
Measurement Period Adjustment - MOI
Goodwill, Purchase Accounting Adjustments
Balance as of September 30, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Revenues:
Revenues [Abstract]
Total operating income (loss)
Operating Income (Loss)
Depreciation
Depreciation
Amortization expense
Amortization of Intangible Assets
Amortization of Intangible Assets
Income Statement [Abstract]
Gain on sale, tax
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Micron Optics, Inc.
Micron Optics, Inc. [Member]
Micron Optics, Inc. [Member]
General Photonics, Inc.
General Photonics, Inc. [Member]
General Photonics, Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Accounts receivable
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Inventory
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory
Other current assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other
Property and equipment
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Identifiable intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Goodwill
Accounts payable and accrued expenses
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Accounts Payable And Accrued Expenses
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Accounts Payable And Accrued Expenses
Total purchase consideration
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Increase in net contract assets (liablities)
Contract with Customer, Asset, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress
Contract assets
Contract with Customer, Asset, after Allowance for Credit Loss
Contract liabilities
Contract with Customer, Liability
Net contract assets
Contract With Customer Assets (Liabilities), Net
Contract With Customer Assets (Liabilities), Net
Basis of Presentation and Significant Accounting Policies
Basis of Presentation and Significant Accounting Policies [Text Block]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Developed technology
Technology-Based Intangible Assets [Member]
In process research and development
In Process Research and Development [Member]
Trade names and trademarks
Trademarks and Trade Names [Member]
Customer base
Customer-Related Intangible Assets [Member]
Cash consideration
Revenue
Business Acquisition, Pro Forma Revenue
Income from continuing operations
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax
Revenue recognized since acquisition
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual
Income (loss) since acquisition
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual
Cash paid at closing
Payments To Acquire Businesses, Gross, Paid At Closing
Payments To Acquire Businesses, Gross Paid At Closing
Amount at closing placed in escrow
Payments To Acquire Businesses, Gross, Placed In Escrow
Payments To Acquire Businesses, Gross, Placed In Escrow
Potential maximum obligation of contingent consideration
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Contingent obligation
Business Combination, Contingent Consideration, Liability
Acquisition costs
Business Combination, Acquisition Related Costs
Discount rate used to estimate fair value of acquired finite-lived intangible assets
Business Combination, Finite-Lived Intangible Assets Acquired, Assumptions Used To Estimate Fair Value, Discount Rate
Business Combination, Finite-Lived Intangible Assets Acquired, Assumptions Used To Estimate Fair Value, Discount Rate
Finished goods
Inventory, Finished Goods, Net of Reserves
Work-in-process
Inventory, Work in Process, Net of Reserves
Raw materials
Inventory, Raw Materials, Net of Reserves
Total inventory
Inventory, Net
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2016-02
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Assets:
Assets [Abstract]
Property and equipment, net
Property, Plant and Equipment, Net
Other assets, net
Other Assets, Noncurrent
Liabilities:
Liabilities [Abstract]
Accrued liabilities
Current portion of capital lease obligations
Capital Lease Obligations, Current
Long-term deferred rent
Deferred Rent Credit, Noncurrent
Long-term operating lease liability
Operating Lease, Liability, Noncurrent
Long-term capital lease obligations
Capital Lease Obligations, Noncurrent
Long-term finance lease liability
Finance Lease, Right-of-Use Asset
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Revenues
Sales [Member]
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Government Contracts Concentration Risk
Government Contracts Concentration Risk [Member]
Geographic Concentration Risk
Geographic Concentration Risk [Member]
U.S. Government
Outside of the United States
Non-US [Member]
China
CHINA
Percentage of total consolidated revenues by customer
Concentration Risk, Percentage
Summary of Intangible Assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Estimated Aggregate Amortization Based on Net Value of Intangible Assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Document And Entity Information [Abstract]
Document And Entity Information [Abstract]
Document Type
Document Type
Amendment Flag
Amendment Flag
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Small Business
Entity Small Business
Entity Current Reporting Status
Entity Current Reporting Status
Entity Shell Company
Entity Shell Company
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Schedule of goodwill
Schedule of Goodwill [Table Text Block]
Statement [Table]
Statement [Table]
Products and licensing
Products And Licensing [Member]
Products And Licensing [Member]
Technology development
Technology Development [Member]
Technology Development [Member]
Statement [Line Items]
Statement [Line Items]
Revenues:
Cost of revenues:
Cost of Revenue [Abstract]
Total cost of revenues
Cost of Goods and Services Sold
Gross profit
Gross Profit
Operating expense:
Operating Expenses [Abstract]
Selling, general and administrative
Selling, General and Administrative Expense
Research, development and engineering
Research and Development Expense
Total operating expense
Operating Expenses
Operating income
Other income/(expense):
Nonoperating Income (Expense) [Abstract]
Investment income
Investment Income, Nonoperating
Other income/(expense)
Other Nonoperating Income (Expense)
Interest expense
Interest Income (Expense), Nonoperating, Net
Total other income
Nonoperating Income (Expense)
Income tax expense/(benefit)
Income Tax Expense (Benefit)
Net income from continuing operations
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
(Loss)/income from discontinued operations, net of income tax of $216,813 and $235,312 for the three and nine months ended September 30, 2018, respectively
Gain on sale, net of income taxes of $1,866,232 and $1,508,373 for the three and nine months ended September 30, 2018, respectively
Net income
Preferred stock dividend
Preferred Stock Dividends, Income Statement Impact
Net income attributable to common stockholders
Net Income (Loss) Available to Common Stockholders, Basic
Net income per share from continuing operations:
Earnings Per Share, Basic and Diluted [Abstract]
Basic (in dollars per share)
Income (Loss) from Continuing Operations, Per Basic Share
Diluted (in dollars per share)
Income (Loss) from Continuing Operations, Per Diluted Share
Net income per share from discontinued operations:
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic and Diluted Share [Abstract]
Basic (in dollars per share)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Diluted (in dollars per share)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Net income per share attributable to common stockholders:
Earnings Per Share [Abstract]
Basic (in dollars per share)
Earnings Per Share, Basic
Diluted (in dollars per share)
Earnings Per Share, Diluted
Weighted average common shares and common equivalent shares outstanding:
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Schedule of Revenues, Operating Income (Loss) and Assets for Reportable Segments
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Leases
Lessee, Operating Leases [Text Block]
Leases
Lessee, Finance Leases [Text Block]
Options Outstanding, Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning Balance (shares)
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Exercised (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Canceled (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period
Ending Balance (shares)
Price per Share Range
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Abstract]
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range
Outstanding, lower limit (in dollars per share)
Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit
Outstanding, upper limit (in dollars per share)
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit
Granted, lower limit (in dollars per share)
Share Based Compensation, Shares Authorized Under Stock Option Plans, Granted Price Range, Lower Range Limit
Share Based Compensation, Shares Authorized Under Stock Option Plans, Granted Price Range, Lower Range Limit
Granted, upper limit (in dollars per share)
Share Based Compensation, Shares Authorized Under Stock Option Plans, Granted Price Range, Upper Range Limit
Share Based Compensation, Shares Authorized Under Stock Option Plans, Granted Price Range, Upper Range Limit
Exercised, lower limit (in dollars per share)
Share Based Compensation, Shares Authorized Under Stock Option Plans, Exercised Price Range, Lower Range Limit
Share Based Compensation, Shares Authorized Under Stock Option Plans, Exercised Price Range, Lower Range Limit
Exercised, upper limit (in dollars per share)
Share Based Compensation, Shares Authorized Under Stock Option Plans, Exercised Price Range, Upper Range Limit
Share Based Compensation, Shares Authorized Under Stock Option Plans, Exercised Price Range, Upper Range Limit
Canceled, lower limit (in dollars per share)
Share Based Compensation, Shares Authorized Under Stock Option Plans, Canceled Price Range, Lower Range Limit
Share Based Compensation, Shares Authorized Under Stock Option Plans, Canceled Price Range, Lower Range Limit
Canceled, upper limit (in dollars per share)
Share Based Compensation, Shares Authorized Under Stock Option Plans, Canceled Price Range, Upper Range Limit
Share Based Compensation, Shares Authorized Under Stock Option Plans, Canceled Price Range, Upper Range Limit
Options Outstanding, Weighted Average Exercise Price
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning balance (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Granted (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Exercised (in dollars per share)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Canceled (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Ending balance (in dollars per share)
Additional Disclosures
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Options outstanding, aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value
Exercisable stock options (in shares)
Options exercisable, weighted average exercise price (in dollars per share)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Options exercisable, aggregate intrinsic value
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value
Schedule of Accrued Liabilities
Schedule of Accrued Liabilities [Table Text Block]
Subsequent Event [Table]
Subsequent Event [Table]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
Prime Rate
Prime Rate [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Amended And Restated Loan And Security Agreement
Amended And Restated Loan And Security Agreement [Member]
Amended And Restated Loan And Security Agreement [Member]
Lender Name [Axis]
Lender Name [Axis]
Line of Credit Facility, Lender [Domain]
Line of Credit Facility, Lender [Domain]
Silicon Valley Bank
Silicon Valley Bank [Member]
Silicon Valley Bank [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility
Revolving Credit Facility [Member]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Line of credit facility
Line of Credit Facility, Maximum Borrowing Capacity
Debt, additional interest above prime rate
Debt Instrument, Basis Spread on Variable Rate
Borrowings outstanding
Long-term Line of Credit
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]
Remaining performance obligation
Revenue, Remaining Performance Obligation, Percentage
Inventory
Inventory Disclosure [Text Block]
Business Combinations
Business Combination Disclosure [Text Block]
Schedule of Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Schedule of components of contract balances
Contract with Customer, Asset and Liability [Table Text Block]
Components of Discontinued Operations
Disposal Groups, Including Discontinued Operations [Table Text Block]
ROU assets - operating lease
Operating Lease, Right-of-Use Asset
ROU assets - finance lease
Total ROU assets
Lease, Right Of Use Asset
Lease, Right Of Use Asset
Current operating lease liability
Current finance lease liability
Long-term operating lease liability
Long-term finance lease liability
Finance Lease, Liability, Noncurrent
Total lease liabilities
Lease, Liability
Lease, Liability
Reportable Segments
Segment Reporting Disclosure [Text Block]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Term Loan
Medium-term Notes [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Debt, face amount
Debt Instrument, Face Amount
2019 - remaining 3 months
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year
2020
Lessee, Operating Lease, Liability, Payments, Due Year Two
2021
Lessee, Operating Lease, Liability, Payments, Due Year Three
2022
Lessee, Operating Lease, Liability, Payments, Due Year Four
2023
Lessee, Operating Lease, Liability, Payments, Due Year Five
2024 and beyond
Lessee, Operating Lease, Liability, Payments, Due after Year Five
Total future minimum lease payments
Lessee, Operating Lease, Liability, Payments, Due
Less: Interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Total operating lease liabilities
Operating Lease, Liability
Current operating lease liability
Long-term operating lease liability
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Equity Components [Axis]
Equity Component [Domain]
Preferred Stock
Preferred Stock [Member]
Common Stock
Common Stock [Member]
Treasury Stock
Treasury Stock [Member]
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Accumulated Deficit
Retained Earnings [Member]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Carilion Clinic
Carilion Clinic [Member]
Carilion Clinic [Member]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Series A Preferred Stock
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Class of Stock [Line Items]
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock beginning balance (in shares)
Common stock beginning balance (in shares)
Treasury stock beginning balance (in shares)
Stockholder's equity beginning balance
Stockholders' Equity Attributable to Parent
Impact of change in accounting policy
Cumulative Effect of New Accounting Principle in Period of Adoption
Exercise of stock options (in shares)
Exercise of stock options
Stock Issued During Period, Value, Stock Options Exercised
Share-based compensation (in shares)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture
Share-based compensation
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture
Non-cash compensation (in shares)
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Non-cash compensation
Stock Issued During Period, Value, Restricted Stock Award, Gross
Stock dividends to Carilion Clinic (in shares)
Stock Dividends, Shares
Stock dividends to Carilion Clinic
Stock Issued During Period, Value, Stock Dividend
Preferred stock to common stock conversion (in shares)
Stock Issued During Period, Shares, Conversion of Convertible Securities
Preferred stock to common stock conversion
Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments
Net income
Purchase of treasury stock (in shares)
Stock Repurchased During Period, Shares
Purchase of treasury stock
Stock Repurchased During Period, Value
Preferred stock ending balance (in shares)
Common stock ending balance (in shares)
Treasury stock ending balance (in shares)
Stockholder's equity ending balance
Accrued dividends
Dividends Payable
Stock dividends for preferred shareholders (in shares)
Dividends Preferred Stock, Shares
The dividends on the preferred stock are paid in common stock shares.
Remainder of 2019
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year
2020
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2021
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2022
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2023
Finite-Lived Intangible Assets, Amortization Expense, Year Five
2024 & beyond
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Total
Finite-Lived Intangible Assets, Net
Schedule of the Cumulative Effect of Adoption of Topic 842
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]
Operating lease costs
Operating Lease, Expense
Variable rent costs
Sublease Income
Total rent expense
Lease, Cost
Assets
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Accounts receivable, net
Accounts Receivable, after Allowance for Credit Loss, Current
Receivable from sale of HSOR business
Nontrade Receivables, Current
Contract assets
Contract with Customer, Asset, Net, Current
Inventory
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Total current assets
Assets, Current
Long-term contract assets
Contract with Customer, Asset, Net, Noncurrent
Property and equipment, net
Intangible assets, net
Intangible Assets, Net (Excluding Goodwill)
Goodwill
Other assets, net
Total assets
Assets
Liabilities and stockholders’ equity
Liabilities and Equity [Abstract]
Liabilities:
Current liabilities:
Liabilities, Current [Abstract]
Current portion of long-term debt obligations
Long-term Debt, Current Maturities
Current portion of capital lease obligations
Accounts payable
Accounts Payable, Current
Accrued liabilities
Contract liabilities
Contract with Customer, Liability, Current
Total current liabilities
Liabilities, Current
Long-term deferred rent
Other long-term liabilities
Other Liabilities, Noncurrent
Long-term capital lease obligations
Total liabilities
Liabilities
Commitments and contingencies
Commitments and Contingencies
Stockholders’ equity:
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, par value $0.001, 1,321,514 shares authorized, 0 and 1,321,514 issued and outstanding at September 30, 2019 and December 31, 2018, respectively
Preferred Stock, Value, Issued
Common stock, par value $0.001, 100,000,000 shares authorized, 31,798,062 and 29,209,506 shares issued, 30,158,271 and 27,956,401 shares outstanding at September 30, 2019 and December 31, 2018, respectively
Common Stock, Value, Issued
Treasury stock at cost, 1,639,791 and 1,253,105 shares at September 30, 2019 and December 31, 2018, respectively
Treasury Stock, Value
Additional paid-in capital
Additional Paid in Capital
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Total stockholders’ equity
Total liabilities and stockholders’ equity
Liabilities and Equity
Effective Income Tax Rate
Effective Income Tax Rate Reconciliation, Percent
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Acquired assets expected useful lives
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Schedule of Finite-Lived Intangible Assets [Table]
Schedule of Finite-Lived Intangible Assets [Table]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Patent costs
Patents [Member]
Developed technology
In-process research & development
Customer base
Customer Relationships [Member]
Trade names and trademarks
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross
Intangible Assets, Gross (Excluding Goodwill)
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Intangible assets, net
Intangible Assets
Intangible Assets Disclosure [Text Block]
Reconciliation of Assets from Segment to Consolidated [Table]
Reconciliation of Assets from Segment to Consolidated [Table]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Reporting, Asset Reconciling Item [Line Items]
Total segment assets:
Total assets
Property plant and equipment, and intangible assets
Accrued Liabilities
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Optoelectronic Components and Subassemblies
Optoelectronic Components And Subassemblies [Member]
Optoelectronic Components And Subassemblies [Member]
Disposal Group Classification [Axis]
Disposal Group Classification [Axis]
Disposal Group Classification [Domain]
Disposal Group Classification [Domain]
Disposed of by Sale
Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Initial purchase price
Disposal Group, Including Discontinued Operation, Consideration
Contingent consideration on discontinued operation
Disposal Group, Including Discontinued Operation, Contingent Consideration
Disposal Group, Including Discontinued Operation, Contingent Consideration
Silicon Valley Bank Term Loan
Long-term Debt
Less: unamortized debt issuance costs
Unamortized Debt Issuance Expense
Less: current portion
Long-term ROU lease liability - Finance lease
Long-term Debt, Excluding Current Maturities
Capital Stock and Share-Based Compensation
Stockholders' Equity Note Disclosure [Text Block]
Debt
Debt Disclosure [Text Block]
Schedule of lease components
Schedule Of Components Of Operating And Finance Leases [Text Block]
Schedule Of Components Of Operating and Finance Leases [Text Block]
Schedule of rent expense
Schedule Of Operating Lease Expense [Table Text Block]
Schedule Of Operating Lease Expense [Table Text Block]
Schedule of future minimum lease payments
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Schedule of other information related to leases
Lease, Cost [Table Text Block]
Dividend on preferred stock, shares of common stock issuable (in shares)
Dividend On Preferred Stock, Shares Of Common Stock Issuable
Dividend On Preferred Stock, Shares Of Common Stock Issuable
Nature of Operations
Nature Of Operations [Policy Text Block]
Nature Of Operations
Unaudited Interim Financial Information
Basis of Accounting, Policy [Policy Text Block]
Business Combinations
Business Combinations Policy [Policy Text Block]
Goodwill and Intangible Assets
Goodwill and Intangible Assets, Policy [Policy Text Block]
Fair Value Measurements
Fair Value of Financial Instruments, Policy [Policy Text Block]
Net Income Per Share
Earnings Per Share, Policy [Policy Text Block]
Recently Issued Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Summary of Stock Option Activity
Share-based Payment Arrangement, Option, Activity [Table Text Block]
Summary of Restricted Stock Awards and Units
Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Details of Equity Transactions
Schedule of Stockholders Equity [Table Text Block]
Commitments and Contingencies Disclosure [Abstract]
Loss Contingencies [Table]
Loss Contingencies [Table]
High Speed Optical Receivers Business
High Speed Optical Receivers Business [Member]
High Speed Optical Receivers Business [Member]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Macom
Macom Technology Solutions, Inc. [Member]
Macom Technology Solutions, Inc. [Member]
Purchase Commitment, Excluding Long-term Commitment [Axis]
Purchase Commitment, Excluding Long-term Commitment [Axis]
Purchase Commitment, Excluding Long-term Commitment [Domain]
Purchase Commitment, Excluding Long-term Commitment [Domain]
Tunable Lasers
Tunable Lasers [Member]
Tunable Lasers [Member]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Escrow deposits related to indemnity claims
Disposal Group, Including Discontinued Operation, Consideration, Escrow
Disposal Group, Including Discontinued Operation, Consideration, Escrow
Accounts receivable
Accounts Receivable, after Allowance for Credit Loss
Amount of the escrow balance received
Disposal Group Including Discontinued Operations, Purchase Price Released From Escrow
Disposal Group Including Discontinued Operations, Purchase Price Released From Escrow
Non-cancelable purchase order delivery period
Significant Purchase Commitment Time Period
Significant Purchase Commitment, Time Period
Non-cancelable purchase order commitment
Contractual Obligation
Non-cancelable purchase order commitment remaining
Purchase Commitment, Remaining Minimum Amount Committed
Finance lease cost:
Lease, Cost [Abstract]
Amortization of right-of-use assets
Finance Lease, Right-of-Use Asset, Amortization
Interest on lease liabilities
Finance Lease, Interest Expense
Total finance lease cost
Finance Lease Cost
Finance Lease Cost
Cash paid for amounts included in the measurement of lease liabilities:
Cash Flow Lessee [Abstract]
Cash Flow Lessee [Abstract]
Operating cash flows from operating leases
Operating Lease, Payments
Finance cash flows from finance leases
Finance Lease, Principal Payments
Right-of-use assets obtained in exchange for new finance lease liabilities
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Weighted-average remaining lease term (years) - operating leases
Operating Lease, Weighted Average Remaining Lease Term
Weighted-average remaining lease term (years) - finance leases
Finance Lease, Weighted Average Remaining Lease Term
Weighted-average discount rate - operating leases
Operating Lease, Weighted Average Discount Rate, Percent
Weighted-average discount rate - finance leases
Finance Lease, Weighted Average Discount Rate, Percent
Contingencies and Guarantees
Commitments and Contingencies Disclosure [Text Block]
Number of Stock Units
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted
Forfeitures (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures
Converted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Other
Ending balance (in shares)
Converted (in usd per share)
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Converted, Weighted Average Grant Date Fair Value
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Converted, Weighted Average Grant Date Fair Value
Intrinsic value, outstanding