Schedule of Stockholders’ Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (1,516)	$ 13,399	$ 13,399
Issuance of common stock for services by third parties	83	119
Issuance of common stock for services by employees	60	207
Issuance of detachable warrants on notes payable		948
Net loss		(38)
Net loss	(1,598)	(2,036)
Ending balance	(3,009)	12,601	(1,516)
Preferred stock dividends	(38)
Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance
Beginning balance, shares	2,500	2,500	2,500
Issuance of common stock for services by third parties
Issuance of common stock for services by employees
Issuance of detachable warrants on notes payable
Net loss
Net loss
Ending balance
Ending balance, shares	2,500	2,500	2,500
Preferred stock dividends
Common Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 2	$ 1	$ 1
Beginning balance, shares	16,199	14,791	14,791
Issuance of common stock for services by third parties
Issuance of common stock for services by third parties, shares	225	125
Issuance of common stock for services by employees		$ 1
Issuance of common stock for services by employees, shares	236	170
Issuance of detachable warrants on notes payable
Net loss
Net loss
Ending balance	$ 2	$ 2	$ 2
Ending balance, shares	16,660	15,086	16,199
Preferred stock dividends
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	73,503	$ 72,003	$ 72,003
Issuance of common stock for services by third parties	83	119
Issuance of common stock for services by employees	60	206
Issuance of detachable warrants on notes payable		948
Net loss
Net loss
Ending balance	73,646	73,278	73,503
Preferred stock dividends
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(75,021)	(58,605)	(58,605)
Issuance of common stock for services by third parties
Issuance of common stock for services by employees
Issuance of detachable warrants on notes payable
Net loss		(38)
Net loss	(1,598)	(2,036)
Ending balance	(76,657)	$ (60,679)	$ (75,021)
Preferred stock dividends	$ (38)