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 income				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, 2021		$ 489	104,423	(97,447)	7,465
Balance at beginning (in shares) at Dec. 31, 2021		48,893,573
Net income					112
Balance at ending at Jun. 30, 2022		$ 491	104,831	(97,335)	7,987
Balance at ending (in shares) at Jun. 30, 2022		49,137,030
Balance at beginning at Mar. 31, 2022		$ 490	104,643	(97,385)	7,748
Balance at beginning (in shares) at Mar. 31, 2022		49,026,741
Issuance of shares and stock option exercises		$ 1	33		34
Issuance of shares and stock option exercises (in shares)		110,289
Stock-based compensation			155		155
Net income				50	50
Balance at ending at Jun. 30, 2022		$ 491	104,831	(97,335)	7,987
Balance at ending (in shares) at Jun. 30, 2022		49,137,030
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 losses				(203)	(203)
Net income				(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
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
Net income					(825)
Balance at ending at Jun. 30, 2023		$ 496	105,762	(101,099)	5,159
Balance at ending (in shares) at Jun. 30, 2023		49,589,204
Balance at beginning at Mar. 31, 2023		$ 495	105,534	(101,432)	4,597
Balance at beginning (in shares) at Mar. 31, 2023		49,520,571
Issuance of shares and stock option exercises		$ 1	33		34
Issuance of shares and stock option exercises (in shares)		68,633
Stock-based compensation			195		195
Net income				333	333
Balance at ending at Jun. 30, 2023		$ 496	$ 105,762	$ (101,099)	$ 5,159
Balance at ending (in shares) at Jun. 30, 2023		49,589,204