Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Preferred Stock [Member] Series B Preferred Stock [Member]	Preferred Stock [Member] Series C Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2022				$ 73,505	$ (75,021)	$ (1,516)
Balance, shares at Dec. 31, 2022	2,500		810
Issuance of common stock for services by third parties				83		83
Issuance of common stock for services by third parties, shares			11
Issuance of common stock for services by employees				60		60
Issuance of common stock for services by employees, shares			12
Preferred stock dividends					(38)	(38)
Net loss					(1,598)	(1,598)
Balance at Mar. 31, 2023				73,648	(76,657)	(3,009)
Balance, shares at Mar. 31, 2023	2,500		833
Balance at Dec. 31, 2023				83,559	(82,706)	853
Balance, shares at Dec. 31, 2023	2,500	200	1,706
Issuance of common stock for services by third parties				2		2
Issuance of common stock for services by third parties, shares			2
Preferred stock dividends					(38)	(38)
Net loss					(1,293)	(1,293)
Balance at Mar. 31, 2024				$ 83,561	$ (84,037)	$ (476)
Balance, shares at Mar. 31, 2024	2,500	200	1,708