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STOCK-BASED COMPENSATION - Employee Stock Purchase Plan - Additional Information (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Jun. 25, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense	$ 47,000		$ 46,000
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense	59,000		56,000
Employee Stock Purchase Plan (ESPP) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
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)				13,721	9,072
Proceeds from common stock issued				$ 1,000,000	$ 1,100,000
Employee Stock Purchase Plan ESPP Purchase Period1		3 months
Employee Stock Purchase Plan (ESPP) [Member] | Selling, General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense	$ 26,000		$ 33,000	62,000	70,000
Employee Stock Purchase Plan (ESPP) [Member] | Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense				104,000	102,000
Employee Stock Purchase Plan (ESPP) [Member] | Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Charges to expense				$ 124,000	$ 118,000

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