Schedule of Stockholders’ Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, March 31, 2023	$ (3,009)	$ (1,516)	$ 12,601	$ 13,399	$ (1,516)	$ 13,399	$ 13,399
Stock-based compensation				2
Issuance of common stock for services by third parties		83	111	119
Issuance of common stock for services by employees		60		207
Issuance of detachable warrants on notes payable			506	948
Preferred stock dividends	(37)	(38)	(37)	(38)
Net loss	(1,643)	(1,598)	(1,788)	(2,036)	(3,241)	(3,824)
Shares issued for cash	651		197
Balance, June 30, 2023	(4,038)	(3,009)	11,590	12,601	(4,038)	11,590	(1,516)
Preferred Stock [Member] | Series B Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, March 31, 2023
Balance, shares	2,500	2,500	2,500	2,500	2,500	2,500	2,500
Stock-based compensation
Issuance of common stock for services by third parties
Issuance of common stock for services by employees
Issuance of detachable warrants on notes payable
Preferred stock dividends
Net loss
Shares issued for cash
Balance, June 30, 2023
Balance, shares	2,500	2,500	2,500	2,500	2,500	2,500	2,500
Common Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, March 31, 2023
Balance, shares	833	810	754	740	810	740	740
Stock-based compensation
Issuance of common stock for services by third parties
Issuance of common stock for services by third parties, shares		11	8	6
Issuance of common stock for services by employees
Issuance of common stock for services by employees, shares		12	1	8
Issuance of detachable warrants on notes payable
Preferred stock dividends
Net loss
Shares issued for cash
Shares issued for cash, shares	135		10
Balance, June 30, 2023
Balance, shares	968	833	773	754	968	773	810
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, March 31, 2023	$ 73,648	$ 73,505	$ 73,280	$ 72,004	$ 73,505	$ 72,004	$ 72,004
Stock-based compensation				2
Issuance of common stock for services by third parties		83	111	119
Issuance of common stock for services by employees		60		207
Issuance of detachable warrants on notes payable			506	948
Preferred stock dividends
Net loss
Shares issued for cash	651		197
Balance, June 30, 2023	74,299	73,648	74,094	73,280	74,299	74,094	73,505
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance, March 31, 2023	(76,657)	(75,021)	(60,679)	(58,605)	(75,021)	(58,605)	(58,605)
Stock-based compensation
Issuance of common stock for services by third parties
Issuance of common stock for services by employees
Issuance of detachable warrants on notes payable
Preferred stock dividends	(37)	(38)	(37)	(38)
Net loss	(1,643)	(1,598)	(1,788)	(2,036)
Shares issued for cash
Balance, June 30, 2023	$ (78,337)	$ (76,657)	$ (62,504)	$ (60,679)	$ (78,337)	$ (62,504)	$ (75,021)