Long-term debt, net - Components of debt (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Long-term debt, net
Debt amount	$ 37,363,000	$ 38,833,000
Less: unamortized debt issuance costs	(292,000)	(312,000)
Total debt	37,071,000	38,521,000
PIK included in accrued expenses and other current liabilities	(93,000)	(93,000)
Less current maturities	(2,313,000)	(1,820,000)
Long term debt, net of current maturities	34,665,000	36,608,000
Credit Agreement - term loan
Long-term debt, net
Debt amount	16,650,000	16,650,000
Notes payable
Long-term debt, net
Debt amount	12,750,000	12,750,000
Credit Agreement - revolving credit facility
Long-term debt, net
Debt amount	6,000,000	7,961,000
Paid in kind interest (PIK)
Long-term debt, net
Debt amount	1,735,000	1,331,000
Machinery financing loans
Long-term debt, net
Debt amount	$ 228,000	$ 141,000