CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 12,341	$ 11,510
Trade accounts receivable, net of allowance for credit losses of $72 and $147, respectively	5,707	4,992
Inventories	5,875	6,751
Other current assets	690	645
TOTAL CURRENT ASSETS	24,613	23,898
Property, plant and equipment - net	1,359	1,072
Other assets	1,429	2,195
TOTAL ASSETS	27,401	27,165
CURRENT LIABILITIES:
Accounts payable	1,272	1,366
Accrued compensation	2,003	1,670
Deferred revenue	1,362	1,575
Other accrued liabilities	1,438	1,596
Income taxes payable	113	112
TOTAL CURRENT LIABILITIES	6,188	6,319
Operating lease liabilities	702	1,500
Long-term other payables	192	237
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, 9,020,819 shares as of December 31, 2023 and 8,816,381 shares as of December 31, 2022	22,731	21,897
Accumulated earnings (deficit)	(2,645)	(3,131)
Accumulated other comprehensive income	233	343
TOTAL STOCKHOLDERS' EQUITY	20,319	19,109
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 27,401	$ 27,165