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Disclosure - NET INCOME (LOSS) PER COMMON SHARE link:calculationLink link:presentationLink link:definitionLink 100180 - Disclosure - LONG-TERM DEBT link:calculationLink link:presentationLink link:definitionLink 100190 - Disclosure - INCOME TAXES link:calculationLink link:presentationLink link:definitionLink 100200 - Disclosure - COMMITMENTS AND CONTINGENCIES link:calculationLink link:presentationLink link:definitionLink 100210 - Disclosure - SHAREHOLDERS' EQUITY link:calculationLink link:presentationLink link:definitionLink 100220 - Disclosure - STOCK OPTIONS AND RESTRICTED SHARES link:calculationLink link:presentationLink link:definitionLink 100230 - Disclosure - SEGMENTS link:calculationLink link:presentationLink link:definitionLink 100240 - Disclosure - SUBSEQUENT EVENTS link:calculationLink link:presentationLink link:definitionLink 100250 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:calculationLink link:presentationLink link:definitionLink 100260 - Disclosure - 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Disclosure - SHAREHOLDERS' EQUITY (Tables) link:calculationLink link:presentationLink link:definitionLink 100360 - Disclosure - STOCK OPTIONS AND RESTRICTED SHARES (Tables) link:calculationLink link:presentationLink link:definitionLink 100370 - Disclosure - SEGMENTS (Tables) link:calculationLink link:presentationLink link:definitionLink 100380 - Disclosure - IMPACT OF COVID-19 (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100390 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100400 - Disclosure - REVENUE (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100410 - Disclosure - REVENUE - Disaggregation of Revenue (Details) link:calculationLink link:presentationLink link:definitionLink 100420 - Disclosure - REVENUE - Summary of Contract Assets and Liabilities (Details) link:calculationLink link:presentationLink link:definitionLink 100430 - Disclosure - ACCOUNTS RECEIVABLE, NET (Accounts Receivable and Allowance for Doubtful Accounts) (Details) link:calculationLink link:presentationLink link:definitionLink 100440 - Disclosure - INVENTORIES, NET (Details) link:calculationLink link:presentationLink link:definitionLink 100450 - Disclosure - PROPERTY AND EQUIPMENT, NET (Summary of Property and Equipment) (Details) link:calculationLink link:presentationLink link:definitionLink 100460 - Disclosure - PROPERTY AND EQUIPMENT, NET (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100470 - Disclosure - LEASES (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100480 - Disclosure - LEASES (Summary of Assets Leased from Third Parties) (Details) link:calculationLink link:presentationLink link:definitionLink 100490 - Disclosure - LEASES (Summary of Estimated Maturity of Lease Liabilities) (Details) link:calculationLink link:presentationLink link:definitionLink 100500 - Disclosure - LEASES (Summary of Estimated Maturity of Lease Liabilities) (Details)2 link:calculationLink link:presentationLink link:definitionLink 100510 - Disclosure - LEASES (Schedule of Revenue and Cost of Sales Arising from Sales-Type Leases) (Details) link:calculationLink link:presentationLink link:definitionLink 100520 - Disclosure - OTHER INTANGIBLE ASSETS, NET (Summary of Components and Changes in Other Intangible Assets) (Details) link:calculationLink link:presentationLink link:definitionLink 100530 - Disclosure - OTHER INTANGIBLE ASSETS, NET (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100540 - Disclosure - OTHER INTANGIBLE ASSETS, NET (Summary of Estimated Amortization Expense) (Details) link:calculationLink link:presentationLink link:definitionLink 100550 - Disclosure - ACCRUED EXPENSES AND OTHER (Accrued Expenses and Other) (Details) link:calculationLink link:presentationLink link:definitionLink 100560 - Disclosure - ACCRUED EXPENSES AND OTHER (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100570 - Disclosure - ACCRUED EXPENSES AND OTHER (Warranty Accrual) (Details) link:calculationLink link:presentationLink link:definitionLink 100580 - Disclosure - NET INCOME (LOSS) PER COMMON SHARE (Earnings per Share) (Details) link:calculationLink link:presentationLink link:definitionLink 100590 - Disclosure - LONG-TERM DEBT (Summary of Long-Term Debt) (Details) link:calculationLink link:presentationLink link:definitionLink 100600 - Disclosure - LONG-TERM DEBT (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100610 - Disclosure - INCOME TAXES (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100620 - Disclosure - SHAREHOLDERS' EQUITY (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100630 - Disclosure - SHAREHOLDERS' EQUITY (Schedule of ESPP Activity) (Details) link:calculationLink link:presentationLink link:definitionLink 100640 - Disclosure - STOCK OPTIONS AND RESTRICTED SHARES (Narrative) (Details) link:calculationLink link:presentationLink link:definitionLink 100650 - Disclosure - STOCK OPTIONS AND RESTRICTED SHARES (Stock-based Compensation) (Details) link:calculationLink link:presentationLink link:definitionLink 100660 - Disclosure - STOCK OPTIONS AND RESTRICTED SHARES (Restricted Shares and Stock Options) (Details) link:calculationLink link:presentationLink link:definitionLink 100670 - Disclosure - SEGMENTS (Reconciliation of Segment Operations) (Details) link:calculationLink link:presentationLink link:definitionLink