Credit Agreement and Guaranty - Carrying Amount Of term Loan (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Credit Agreement and Guaranty
Notes payable	$ 2,400,000		$ 2,625,000
Debt issuance costs	(155,000)		(209,000)
Warrant discount	(737,000)		(990,000)
Total	1,508,000		1,426,000
Less, current portion	1,508,000		$ 1,426,000
Amortization and debt issue costs	$ 307,000	$ 419,000