Schedule of Stockholders’ Equity (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 13,399
Stock-based compensation	2	$ 19
Issuance of common stock for services by third parties	119
Issuance of common stock for services by employees	207
Issuance of detachable warrants on notes payable	948
Net loss	(2,074)	$ 3,708
Ending balance	12,601
Preferred Stock [Member] | Preferred Class B [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance
Beginning balance, shares	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
Net loss
Ending balance
Beginning balance, shares	2,500
Common Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 1
Beginning balance, shares	14,791
Stock-based compensation
Issuance of common stock for services by third parties
Beginning balance, shares	125
Issuance of common stock for services by employees	$ 1
Beginning balance, shares	170
Issuance of detachable warrants on notes payable
Net loss
Ending balance	$ 2
Beginning balance, shares	15,086
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 72,003
Stock-based compensation	2
Issuance of common stock for services by third parties	119
Issuance of common stock for services by employees	206
Issuance of detachable warrants on notes payable	948
Net loss
Ending balance	73,278
Retained Earnings [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(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
Net loss	(2,074)
Ending balance	$ (60,679)