Consolidated Statements of Stockholder's Equity (Deficit) - 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, 2021				$ 72,004	$ (58,605)	$ 13,399
Balance, shares at Dec. 31, 2021	2,500		740
Stock-based compensation				2		2
Issuance of common stock for services by third parties				119		119
Issuance of common stock for services by third parties, shares			6
Issuance of common stock for services by employees				207		207
Issuance of common stock for services by employees, shares			8
Issuance of detachable warrants on notes payable				948		948
Preferred stock dividends					(38)	(38)
Net loss					(2,036)	(2,036)
Balance at Mar. 31, 2022				73,280	(60,679)	12,601
Balance, shares at Mar. 31, 2022	2,500		754
Balance at Dec. 31, 2021				72,004	(58,605)	13,399
Balance, shares at Dec. 31, 2021	2,500		740
Net loss						(6,557)
Balance at Sep. 30, 2022				74,230	(65,275)	8,955
Balance, shares at Sep. 30, 2022	2,500		773
Balance at Mar. 31, 2022				73,280	(60,679)	12,601
Balance, shares at Mar. 31, 2022	2,500		754
Stock-based compensation
Issuance of common stock for services by third parties				111		111
Issuance of common stock for services by third parties, shares			8
Issuance of common stock for services by employees
Issuance of common stock for services by employees, shares			1
Issuance of detachable warrants on notes payable				506		506
Preferred stock dividends					(37)	(37)
Net loss					(1,788)	(1,788)
Shares issued for cash				197		197
Shares issued for cash, shares			10
Balance at Jun. 30, 2022				74,094	(62,504)	11,590
Balance, shares at Jun. 30, 2022	2,500		773
Issuance of detachable warrants on notes payable				136		136
Preferred stock dividends					(38)	(38)
Net loss					(2,733)	(2,733)
Balance at Sep. 30, 2022				74,230	(65,275)	8,955
Balance, shares at Sep. 30, 2022	2,500		773
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, 2022				73,505	(75,021)	(1,516)
Balance, shares at Dec. 31, 2022	2,500		810
Net loss						(5,397)
Balance at Sep. 30, 2023				83,185	(80,531)	2,654
Balance, shares at Sep. 30, 2023	2,500	200	1,538
Balance at Mar. 31, 2023				73,648	(76,657)	(3,009)
Balance, shares at Mar. 31, 2023	2,500		833
Preferred stock dividends					(37)	(37)
Net loss					(1,643)	(1,643)
Shares issued for cash				651		651
Shares issued for cash, shares			135
Balance at Jun. 30, 2023				74,299	(78,337)	(4,038)
Balance, shares at Jun. 30, 2023	2,500		968
Issuance of common stock for services by third parties				373		373
Issuance of common stock for services by third parties, shares			121
Issuance of common stock for services by employees				33		33
Issuance of common stock for services by employees, shares			11
Preferred stock dividends					(38)	(38)
Net loss					(2,156)	(2,156)
Shares issued for cash				649		649
Shares issued for cash, shares			141
Debt to equity conversion				7,831		7,831
Debt to equity conversion, shares		200	297
Balance at Sep. 30, 2023				$ 83,185	$ (80,531)	$ 2,654
Balance, shares at Sep. 30, 2023	2,500	200	1,538