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Long-term Debt - Narratives (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Annual effective interest rates in excess 14.30%  
Long-term debt $ 5,982,000 $ 6,371,000
Long-term debt, current portion 1,703,000 $ 1,644,000
Equipment financing facility    
Debt Instrument [Line Items]    
Maximum borrowing capacity 25,000,000  
Long-term line of credit 7,000  
Interest expense 219,000  
Remaining borrowing capacity $ 18,000,000