99900 - Disclosure - Standard And Custom Axis Domain Defaults link:presentationLink link:calculationLink link:definitionLink 995200100 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 995200200 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 995200300 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 995200500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 99940401 - Disclosure - 4. BALANCE SHEET DETAIL - Inventories (Details) link:presentationLink link:calculationLink link:definitionLink 99940402 - Disclosure - 4. BALANCE SHEET DETAIL - Accounts receivable, net (Details) link:presentationLink link:calculationLink link:definitionLink 99940403 - Disclosure - 4. BALANCE SHEET DETAIL - Prepaid expenses and other current assets (Details) link:presentationLink link:calculationLink link:definitionLink 99940404 - Disclosure - 4. BALANCE SHEET DETAIL - Property and equipment, net (Details) link:presentationLink link:calculationLink link:definitionLink 99940405 - Disclosure - 4. BALANCE SHEET DETAIL - Intangible assets (Details) link:presentationLink link:calculationLink link:definitionLink 99940406 - Disclosure - 4. BALANCE SHEET DETAIL - Future amortization (Details) link:presentationLink link:calculationLink link:definitionLink 99940407 - Disclosure - 4. BALANCE SHEET DETAIL - Accrued expenses and other liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 99940601 - Disclosure - 6. INCOME TAXES - Provision for income taxes (Details) link:presentationLink link:calculationLink link:definitionLink 99940602 - Disclosure - 6. INCOME TAXES - U.S Statutory income tax (Details) link:presentationLink link:calculationLink link:definitionLink 99940603 - Disclosure - 6. INCOME TAXES - Deferred tax assets and liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 40603 - Disclosure - 6. INCOME TAXES - Deferred tax assets and liabilities (Details) Calc2 link:presentationLink link:calculationLink link:definitionLink 99940604 - Disclosure - 6. INCOME TAXES - Income taxes paid, net of refunds (Details) link:presentationLink link:calculationLink link:definitionLink 99940801 - Disclosure - 8. LEASES - Operating leases (Details) link:presentationLink link:calculationLink link:definitionLink 99940802 - Disclosure - 8. LEASES - Lease costs (Details) link:presentationLink link:calculationLink link:definitionLink 99940804 - Disclosure - 8. LEASES - Maturity of lease liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 40804 - Disclosure - 8. LEASES - Maturity of Lease Liabilities (Details) - Calc 2 link:presentationLink link:calculationLink link:definitionLink 995200090 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 995200105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 995200205 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 995200400 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 995200405 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 995200505 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 995210101 - Disclosure - 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 995210201 - Disclosure - 2. REVENUE RECOGNITION link:presentationLink link:calculationLink link:definitionLink 995210301 - Disclosure - 3. NET LOSS PER COMMON SHARE link:presentationLink link:calculationLink link:definitionLink 995210401 - Disclosure - 4. BALANCE SHEET DETAIL link:presentationLink link:calculationLink link:definitionLink 995210501 - Disclosure - 5. GOODWILL link:presentationLink link:calculationLink link:definitionLink 995210601 - Disclosure - 6. INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 995210701 - Disclosure - 7. FINANCIAL INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 995210901 - Disclosure - 9. COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 995211001 - Disclosure - 10. COMMON STOCK link:presentationLink link:calculationLink link:definitionLink 995211101 - Disclosure - 11. STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 995211301 - Disclosure - 13. SEGMENT AND GEOGRAPHIC INFORMATION link:presentationLink link:calculationLink link:definitionLink 995211401 - Disclosure - 14. ACQUISITION link:presentationLink link:calculationLink link:definitionLink 995211501 - Disclosure - 15. EMPLOYEE BENEFIT PLANS link:presentationLink link:calculationLink link:definitionLink 99920102 - Disclosure - 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 99930103 - Disclosure - 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 99930203 - Disclosure - 2. REVENUE RECOGNITION (Tables) link:presentationLink link:calculationLink link:definitionLink 99930303 - Disclosure - 3. NET LOSS PER COMMON SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 99930403 - Disclosure - 4. BALANCE SHEET DETAIL (Tables) link:presentationLink link:calculationLink link:definitionLink 99930603 - Disclosure - 6. INCOME TAXES (Tables) link:presentationLink link:calculationLink link:definitionLink 99930703 - Disclosure - 7. FINANCIAL INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 99931103 - Disclosure - 11. STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 99931303 - Disclosure - 13. SEGMENT AND GEOGRAPHIC INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 99940101 - Disclosure - 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) link:presentationLink link:calculationLink link:definitionLink 99940102 - Disclosure - 1. THE COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Other (Details) link:presentationLink link:calculationLink link:definitionLink 99940201 - Disclosure - 2. REVENUE RECOGNITION (Details) link:presentationLink link:calculationLink link:definitionLink 99940202 - Disclosure - 2. REVENUE RECOGNITION - Revenue disaggregated (Details) link:presentationLink link:calculationLink link:definitionLink 99940301 - Disclosure - 3. NET LOSS PER COMMON SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 99940302 - Disclosure - 3. NET LOSS PER COMMON SHARE - Shares underlying options (Details) link:presentationLink link:calculationLink link:definitionLink 99940408 - Disclosure - 4. BALANCE SHEET DETAIL - Additional information (Details) link:presentationLink link:calculationLink link:definitionLink 99940501 - Disclosure - 5. GOODWILL (Details) link:presentationLink link:calculationLink link:definitionLink 99940605 - Disclosure - 6. INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 99940701 - Disclosure - 7. FINANCIAL INSTRUMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 99940702 - Disclosure - 7. FINANCIAL INSTRUMENTS - Change in contingent consideration (Details) link:presentationLink link:calculationLink link:definitionLink 99940703 - Disclosure - 7. FINANCIAL INSTRUMENTS - Available-for-sale investments (Details) link:presentationLink link:calculationLink link:definitionLink 99940901 - Disclosure - 9. COMMITMENTS AND CONTINGENCIES - Product warranties (Details) link:presentationLink link:calculationLink link:definitionLink 99941001 - Disclosure - 10. COMMON STOCK (Details) link:presentationLink link:calculationLink link:definitionLink 99941002 - Disclosure - 10. COMMON STOCK - Repurchases (Details) link:presentationLink link:calculationLink link:definitionLink 99941101 - Disclosure - 11. STOCK-BASED COMPENSATION (Details) link:presentationLink link:calculationLink link:definitionLink 99941102 - Disclosure - 11. STOCK-BASED COMPENSATION - Stock option activities (Details) link:presentationLink link:calculationLink link:definitionLink 99941103 - Disclosure - 11. STOCK-BASED COMPENSATION - Options outstanding by exercise price (Details) link:presentationLink link:calculationLink link:definitionLink 99941104 - Disclosure - 11. STOCK-BASED COMPENSATION - Stock-based compensation expense (Details) link:presentationLink link:calculationLink link:definitionLink 99941105 - Disclosure - 11. STOCK-BASED COMPENSATION - Weighted average assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 99941201 - Disclosure - 12. RELATED PARTY TRANSACTIONS (Details) link:presentationLink link:calculationLink link:definitionLink 99941301 - Disclosure - 13. SEGMENT AND GEOGRAPHIC INFORMATION - Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 99941302 - Disclosure - 13. SEGMENT AND GEOGRAPHIC INFORMATION - Property and equipment (Details) link:presentationLink link:calculationLink link:definitionLink 99941401 - Disclosure - 14. ACQUISITION (Details) link:presentationLink link:calculationLink link:definitionLink 99941501 - Disclosure - 15. EMPLOYEE BENEFIT PLANS (Details) link:presentationLink link:calculationLink link:definitionLink 99941601 - Disclosure - 16. GOVERNMENT AGREEMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 99941701 - Disclosure - 17. WARRANTS (Details) link:presentationLink link:calculationLink link:definitionLink 99941801 - Disclosure - 18. SUBSEQUENT EVENT (Details) link:presentationLink link:calculationLink link:definitionLink 995210801 - Disclosure - 8. LEASES link:presentationLink link:calculationLink link:definitionLink 995211201 - Disclosure - 12. RELATED PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 995211601 - Disclosure - 16. GOVERNMENT AGREEMENTS link:presentationLink link:calculationLink link:definitionLink 995211701 - Disclosure - 17. WARRANTS link:presentationLink link:calculationLink link:definitionLink 995211801 - Disclosure - 18. SUBSEQUENT EVENT link:presentationLink link:calculationLink link:definitionLink 99930803 - Disclosure - 8. LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 99940803 - Disclosure - 8. LEASES - Other information (Details) link:presentationLink link:calculationLink link:definitionLink