CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited Consolidated Condensed) - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at beginning at Dec. 31, 2021		$ 489	$ 104,423	$ (97,447)	$ 7,465
Balance at beginning (in shares) at Dec. 31, 2021		48,893,573
Issuance of shares and stock option exercises		$ 1	72		73
Issuance of shares and stock option exercises (in shares)		133,168
Stock-based compensation			148		148
Net loss				62	62
Balance at ending at Mar. 31, 2022		$ 490	104,643	(97,385)	7,748
Balance at ending (in shares) at Mar. 31, 2022		49,026,741
Balance at beginning at Dec. 31, 2022		$ 493	105,226	(100,070)	5,649
Balance at beginning (in shares) at Dec. 31, 2022		49,320,680
Issuance of shares and stock option exercises		$ 2	99		101
Issuance of shares and stock option exercises (in shares)		199,891
Stock-based compensation			209		209
Cumulative effect of accounting changes related to expected credit loss				(203)	(203)
Net loss				(1,159)	(1,159)
Balance at ending at Mar. 31, 2023		$ 495	$ 105,534	$ (101,432)	$ 4,597
Balance at ending (in shares) at Mar. 31, 2023		49,520,571