Document And Entity Information Document Information [Table] Document Information [Line Items] Document Type Document Annual Report Document Period End Date Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Voluntary Filers Entity Well-known Seasoned Issuer Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Entity Shell Company Entity Common Stock, Shares Outstanding Entity Public Float Entity Central Index Key Current Fiscal Year End Date Document Fiscal Period Focus Document Fiscal Year Focus Auditor Name Auditor Firm ID Auditor Location Amendment Flag CONSOLIDATED BALANCE SHEETS Statement [Table] Statement [Line Items] Statement Assets Abstract ASSETS Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Debt Securities, Available-for-sale, Current Short-term investments Accounts Receivable, Net, Current Accounts receivable, net Total accounts receivable, net Inventory, Net Inventories Total inventory Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets ($375 and $0 from a related party) Total prepaid expenses and other current assets Prepaid expenses and other current assets Disposal Group, Including Discontinued Operation, Other Assets, Current Assets held for sale Assets, Current Total current assets Property, Plant, and Equipment, Net Property and equipment, net Total property and equipment, net Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Debt Securities, Available-for-sale, Noncurrent Long-term investments Goodwill, Total Goodwill Finite-Lived Intangible Assets, Net Total Intangible assets, net Deposits Assets, Noncurrent Deposits Assets Total assets LIABILITIES AND STOCKHOLDERS' EQUITY LIABILITIES AND STOCKHOLDERS' EQUITY Accounts Payable, Current Accounts payable ($0 and $8 to a related party) Accounts payable Operating Lease, Liability, Current Lease liabilities, current Current Accrued Liabilities, Current Accrued expenses and other liabilities Total accrued expenses and other liabilities Liabilities, Current Total current liabilities Deferred Income Tax Liabilities, Net Deferred tax liability Operating Lease, Liability, Noncurrent Lease liabilities, non-current Non-current Other Accrued Liabilities, Noncurrent Contingent consideration, non-current Liabilities Total liabilities Commitments and Contingencies 1 Commitments and contingencies (Note 9) Stockholders' equity: Preferred Stock, Value, Issued Preferred stock: $0.001 par value authorized: 5,000,000 shares; issued and outstanding: none Common Stock, Value, Issued Common Stock: $0.001 par value authorized: 150,000,000 shares; issued and outstanding: 25,300,372 and 24,685,059 shares, respectively Additional Paid in Capital Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Retained deficit Stockholders' Equity Attributable to Parent Ending Balance, Amount Beginning Balance - Amount Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Related Party [Axis] Related Party [Domain] Related Party [Member] Related party Stockholders' Equity Preferred stock, par value Preferred stock, shares authorized Preferred stock, shares issued Preferred stock, shares outstanding Common stock, par value Common stock, par value Common stock, shares authorized Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding CONSOLIDATED STATEMENTS OF OPERATIONS Revenue from Contract with Customer, Excluding Assessed Tax Net revenues Cost of Revenue Cost of revenues ($125, $240 and $397 to a related party) Gross Profit Gross profit Operating expenses: Research and Development Expense Research and development Selling, General and Administrative Expense. Selling, general and administrative Operating Expenses Total operating expenses Operating Income (Loss) Loss from operations Investment Income, Net Interest income, net Other Nonoperating Income (Expense) Other (expense), net Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income (loss) before income taxes Loss before income taxes Income Tax Expense (Benefit) Provision for income taxes Provision for income taxes Provision (benefit) for income taxes Net loss Net loss NET LOSS PER COMMON SHARE Net loss per share: Earnings Per Share, Basic Basic Net loss per common share - Basic Earnings Per Share, Diluted Diluted Net loss per common share - Diluted Weighted Average Number Of Shares Outstanding [Abstract] Weighted average shares used in per share calculations: Weighted average shares-Basic Weighted average shares - Basic Basic Weighted average shares-Dilutive Weighted average shares - Dilutive Diluted Other Cost of Operating Revenue Cost of revenues, related party CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Net unrealized gain (loss) on available-for-sale investments Net unrealized gain (loss) on available-for-sale investments Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive loss Comprehensive income (loss) CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Common Stock Additional Paid-in Capital Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss) Retained Earnings (Deficit) Shares, Issued Ending Balance, Shares Beginning Balance - Shares Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Issuance of common stock under employee stock option plans, shares Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Issuance of common stock under employee stock option plans, amount Stock Issued During Period, Shares, New Issues Issuance of common stock pursuant to an At-the-Market offering, net of offering costs, shares Stock Issued During Period, Value, New Issues Issuance of common stock pursuant to an At-the-Market offering, net of offering costs, amount Stock Repurchased During Period, Shares Repurchase and retirement of common stock, shares Repurchase of common stock, shares Stock Repurchased During Period, Value Repurchase and retirement of common stock, amount Repurchase of common stock, amount Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation expense Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Comprehensive loss: Amount of stock issuance or offering costs. Offering Costs Offering costs CONSOLIDATED STATEMENTS OF CASH FLOWS Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to reconcile net loss to net cash used in operating activities: Provision for Doubtful Accounts Allowance for credit losses Inventory Write-down Provision for excess and obsolete inventories Inventory write-downs Other Noncash Expense Non-cash lease expense Amount of increase (decrease) in fair value of contingent consideration. Increase (Decrease) In Fair Value of Contingent Consideration Change in fair value of contingent consideration Depreciation, Depletion and Amortization Depreciation and amortization Share-based Compensation, Total Stock-based compensation Accretion (Amortization) of Discounts and Premiums, Investments Amortization of premium on investments Changes in assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Other Accrued Liabilities Accrued expenses and other liabilities Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Cash flows from investing activities: Payments to Acquire Debt Securities, Available-for-sale Purchase of investments Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Maturities of short-term investments Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Net Cash Provided by (Used in) Investing Activities Net cash provided by investing activities Cash flows from financing activities: Proceeds from Issuance of Common Stock Proceeds from issuance of common stock under At-the-Market offering, net of offering costs of $389 Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Proceeds from issuance of common stock under employee stock plans Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Cash and Cash Equivalents, Period Increase (Decrease) Net decrease in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents at end of the period Cash and cash equivalents at beginning of the period Non-cash investing activities: Non-cash investing and financing activities: Capital Expenditures Incurred but Not yet Paid Purchases of property and equipment through accounts payable and accruals Represents the noncash amount of right of use assets and operating lease obligations. Noncash Right Of Use Assets And Operating Lease Obligations Operating lease right-of-use assets exchanged for lease obligations Supplemental cash flow information: Income Taxes Paid, Net Net cash paid for income taxes The Company And Summary Of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] NOTE 1 - THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES REVENUE RECOGNITION. Revenue from Contract with Customer [Text Block] NOTE 2 - REVENUE RECOGNITION Earnings Per Share [Text Block] NOTE 3 - NET LOSS PER COMMON SHARE BALANCE SHEET DETAIL Supplemental Balance Sheet Disclosures [Text Block] NOTE 4 - BALANCE SHEET DETAIL GOODWILL Goodwill and Intangible Assets Disclosure [Text Block] NOTE 5 - GOODWILL INCOME TAXES Income Tax Disclosure [Text Block] NOTE 6 - INCOME TAXES FINANCIAL INSTRUMENTS Financial Instruments Disclosure [Text Block] NOTE 7 - FINANCIAL INSTRUMENTS LEASES Lessee, Operating Leases [Text Block] NOTE 8 - LEASES COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] NOTE 9 - COMMITMENTS AND CONTINGENCIES COMMON STOCK. Stockholders' Equity Note Disclosure [Text Block] NOTE 10 - COMMON STOCK STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] NOTE 11 - STOCK-BASED COMPENSATION RELATED PARTY TRANSACTION Related Party Transactions Disclosure [Text Block] NOTE 12 - RELATED PARTY TRANSACTION SEGMENT AND GEOGRAPHIC INFORMATION Segment Reporting Disclosure [Text Block] NOTE 13 - SEGMENT AND GEOGRAPHIC INFORMATION ACQUISITION Business Combination Disclosure [Text Block] NOTE 14 - ACQUISITION EMPLOYEE BENEFIT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] NOTE 15 - EMPLOYEE BENEFIT PLANS GOVERNMENT AGREEMENTS Government Assistance [Text Block] NOTE 16 - GOVERNMENT AGREEMENTS SUBSEQUENT EVENT NOTE 17 - SUBSEQUENT EVENT Accounting principles Accounting principles