CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
CURRENT ASSETS:
Cash and cash equivalents	$ 11,870	$ 11,510
Trade accounts receivable, net of allowance for doubtful accounts of $135 and $147, respectively	4,725	4,992
Inventories	6,868	6,751
Other current assets	847	645
TOTAL CURRENT ASSETS	24,310	23,898
Property, plant and equipment - net	989	1,072
Other assets	1,802	2,195
TOTAL ASSETS	27,101	27,165
CURRENT LIABILITIES:
Accounts payable	1,590	1,366
Accrued compensation	1,723	1,670
Deferred revenue	1,363	1,575
Other accrued liabilities	1,542	1,596
Income taxes payable	91	112
TOTAL CURRENT LIABILITIES	6,309	6,319
Operating lease liabilities	1,087	1,500
Long-term other payables	218	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, 9,018,875 shares as of June 30, 2023 and 8,816,381 shares as of December 31, 2022	22,165	21,897
Accumulated earnings (deficit)	(2,736)	(3,131)
Accumulated other comprehensive income	58	343
TOTAL STOCKHOLDERS' EQUITY	19,487	19,109
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 27,101	$ 27,165