Credit Agreement and Guaranty - Carrying Amount Of term Loan (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022
Credit Agreement and Guaranty
Notes payable	$ 2,625,000	$ 20,000,000
Debt issuance costs	(209,000)	(550,000)
Warrant discount	(990,000)	(2,617,000)
Total	1,426,000	16,833,000
Less, current portion	1,426,000	16,833,000	$ 1,318,000	$ 12,630,000	$ 12,252,000
Warrants and debt issue costs	$ 1,969,000	$ 1,661,000