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STOCK-BASED COMPENSATION - Employee Stock Purchase Plan - Additional Information (Details) - Employee Stock Purchase Plan (ESPP) [Member] - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Jun. 25, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee Stock Purchase Plan ESPP Purchase Period1	3 months
Reserved for issuance (in shares)				1,000,000
Percentage of market value (in hundredths)	85.00%
Maximum allocation of base compensation (in hundredths)	10.00%
Maximum shares per purchase date (in shares)	12,500
Maximum value per calendar year, per employee	$ 25,000
Common stock issued (in shares)	17,583	15,230	17,513
Proceeds from common stock issued	$ 2,000,000	$ 2,200,000	$ 2,000,000
Selling, General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense	136,000	130,000	136,000
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense	246,000	210,000	167,000
Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense	$ 191,000	$ 259,000	$ 240,000

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Employee stock purchase plan ESPP compensation expense.

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The maximum percentage of employees' base compensation that can be allocated under the plan.

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The maximum number of shares that may be purchased on a given purchase date, under the plan.

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The maximum value of shares that may be purchased by a single employee during a given calendar year, under the plan.

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The percentage of the lesser of the price per share of common stock on the first day of the purchase period, or the last day of the purchase period, at which eligible employees may purchase shares under the plan.

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