Line of Credit (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Loan and Security Agreement with Cherokee Financial, LLC
Interest expense	$ 23,000	$ 35,000
Accrued interest	17,000	15,000
Crestmark Line of Credit
Interest expense	12,000	9,000
Accrued interest	0	0
Cherokee Loan and Security Agreement
Interest expense	10,000	11,000
Accrued interest	7,000	5,000
April 2020 PPP Loan with Crestmark
Interest expense	1,000	0
Accrued interest	3,000	2,000
November 2020 Shareholder Note
Interest expense	0	0
Accrued interest	0	0
November 2020 Shareholder Note
Interest expense	1,000	0
Accrued interest	$ 0	$ 0