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, 2020		$ 382	$ 102,117	$ (99,767)	$ 2,732
Balance at beginning (in shares) at Dec. 31, 2020		38,221,292
Stock-based compensation			42		42
Net income				1,310	1,310
Balance at ending at Mar. 31, 2021		$ 382	102,159	(98,457)	4,084
Balance at ending (in shares) at Mar. 31, 2021		38,221,292
Balance at beginning at Dec. 31, 2020		$ 382	102,117	(99,767)	2,732
Balance at beginning (in shares) at Dec. 31, 2020		38,221,292
Net income					1,351
Balance at ending at Jun. 30, 2021		$ 485	104,206	(98,416)	6,275
Balance at ending (in shares) at Jun. 30, 2021		48,460,347
Balance at beginning at Mar. 31, 2021		$ 382	102,159	(98,457)	4,084
Balance at beginning (in shares) at Mar. 31, 2021		38,221,292
Stock option exercises		$ 2	76		78
Stock option exercises (in shares)		143,500
Exercise of conversion rights – convertible loan, related party		$ 101	1,918		2,019
Exercise of conversion rights - convertible loan, related party (in shares)		10,095,555
Stock-based compensation			53		53
Net income				41	41
Balance at ending at Jun. 30, 2021		$ 485	104,206	(98,416)	6,275
Balance at ending (in shares) at Jun. 30, 2021		48,460,347
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