Line of Credit and Debt (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Total debt, net	$ 1,736,000	$ 1,804,000
Current portion	1,736,000	684,000
Long-term portion, net of current portion	0	1,120,000
Crestmark Line of Credit
Long-term debt, gross	446,000	277,000
Loan and Security Agreement with Cherokee Financial, LLC
Long-term debt, gross	1,000,000	900,000
2019 Term Loan with Cherokee Financial, LLC
Long-term debt, gross	240,000	220,000
April 2020 PPP Loan with Crestmark
Long-term debt, gross	0	332,000
November 2020 Shareholder Note 1
Long-term debt, gross	0	25,000
November 2020 Shareholder Note 2
Long-term debt, gross	$ 50,000	$ 50,000