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
Beginning balance at Dec. 31, 2022		$ 493	$ 105,226	$ (100,070)	$ 5,649
Beginning balance (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 income (loss)				(1,159)	(1,159)
Ending balance at Mar. 31, 2023		$ 495	105,534	(101,432)	4,597
Ending balance (in shares) at Mar. 31, 2023		49,520,571
Beginning balance at Dec. 31, 2023		$ 496	106,069	(104,663)	1,902
Beginning balance (in shares) at Dec. 31, 2023		49,627,254
Issuance of shares and stock option exercises		$ 52	1,944		1,996
Issuance of shares and stock option exercises (in shares)		5,233,730
Stock-based compensation			160		160
Net income (loss)				893	893
Ending balance at Mar. 31, 2024		$ 548	$ 108,173	$ (103,770)	$ 4,951
Ending balance (in shares) at Mar. 31, 2024		54,860,984