CONSOLIDATED BALANCE SHEETS (in thousands, except share data) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 14,167	$ 13,936
Trade accounts receivable, net of allowance for doubtful accounts of $66 and $80, respectively	2,494	4,099
Inventories	5,270	5,020
Other current assets	1,319	924
TOTAL CURRENT ASSETS	23,250	23,979
Property, plant and equipment - net	1,216	1,668
Income tax receivable	0	640
Other assets	1,126	1,994
TOTAL ASSETS	25,592	28,281
Current Liabilities
Accounts payable	1,245	1,151
Accrued compensation	1,509	1,541
Deferred revenue	1,068	1,387
Other accrued liabilities	1,307	1,372
Income taxes payable	62	31
TOTAL CURRENT LIABILITIES	5,191	5,482
Operating lease liabilities	588	1,178
Long-term other payables	174	91
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, 8,416,335 shares as of December 31, 2020 and 8,212,748 shares as of December 31, 2019	20,071	18,748
Accumulated earnings (deficit)	(1,456)	2,508
Accumulated other comprehensive income (loss)	1,024	274
TOTAL STOCKHOLDERS' EQUITY	19,639	21,530
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 25,592	$ 28,281