CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 11,999	$ 12,341
Trade accounts receivable, net of allowance for credit losses of $71 and $72, respectively	4,822	5,707
Inventories	6,372	5,875
Other current assets	739	690
TOTAL CURRENT ASSETS	23,932	24,613
Property, plant and equipment - net	1,044	1,359
Other assets	1,228	1,429
TOTAL ASSETS	26,204	27,401
CURRENT LIABILITIES:
Accounts payable	1,544	1,272
Accrued compensation	1,318	2,003
Deferred revenue	1,606	1,362
Other accrued liabilities	1,271	1,438
Income taxes payable	45	113
TOTAL CURRENT LIABILITIES	5,784	6,188
Operating lease liabilities	562	702
Long-term other payables	226	192
COMMITMENTS	0	0
STOCKHOLDERS' EQUITY
Preferred stock -Authorized, 5,000,000 shares, including 200,000 shares of Series A Junior Participating Issued and outstanding, none	0	0
Common stock, at stated value -Authorized, 30,000,000 shares Issued and outstanding, 9,024,959 shares as of March 31, 2024 and 9,020,819 shares as of December 31, 2023	23,019	22,731
Accumulated earnings (deficit)	(3,452)	(2,645)
Accumulated other comprehensive income	65	233
TOTAL STOCKHOLDERS' EQUITY	19,632	20,319
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 26,204	$ 27,401