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Long Term Debt - CIBC Loan Narrative (Details)
1 Months Ended 12 Months Ended
Feb. 20, 2020
USD ($)
Oct. 31, 2022
USD ($)
Oct. 31, 2021
USD ($)
Mar. 31, 2021
USD ($)
Apr. 30, 2020
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Mar. 31, 2022
payment
Dec. 31, 2020
USD ($)
Debt Instrument [Line Items]                  
Payment of fees to lender and third parties           $ 53,000 $ 41,000    
Amortization of debt discount and debt issuance costs           56,000 106,000    
Medium-term Notes | CIBC Agreement                  
Debt Instrument [Line Items]                  
Revenue threshold for interest period extension term option     $ 5,000,000            
CIBC Agreement | Medium-term Notes                  
Debt Instrument [Line Items]                  
Debt instrument, face amount including accordion feature $ 32,000,000                
Debt term 5 years                
Interest payments term 24 months   24 months            
Principal and interest payments term 36 months   36 months            
Fee amount         $ 200,000        
Gain (loss) on amendment of debt instrument   $ 0   $ 0 $ 0        
Number of periodic payments | payment               36  
Payment of fees to lender and third parties $ 400,000 100,000   $ 100,000          
Increase in loan interest rate     0            
Cash and cash equivalents trigger for revenue requirement (less than) $ 100,000,000         $ 20,000,000     $ 50,000,000
Minimum percentage of revenue requirement, trailing period of revenue 3 months                
Minimum percentage of revenue requirement 80.00%                
Unrestricted cash requirement period 4 months                
Effective interest rate           9.10%      
Amortization of debt discount and debt issuance costs           $ 100,000 100,000    
Interest expense           $ 1,100,000 $ 800,000    
CIBC Agreement | Medium-term Notes | Repaid During First Year After Third Amendment's Effective Date                  
Debt Instrument [Line Items]                  
Prepayment fee equal percentage 2.00%                
CIBC Agreement | Medium-term Notes | Repaid During Second Year After Third Amendment's Effective Date                  
Debt Instrument [Line Items]                  
Prepayment fee equal percentage 1.00%                
CIBC Agreement | Medium-term Notes | Prime Rate                  
Debt Instrument [Line Items]                  
Basis spread on variable rate 1.00%                
CIBC Agreement, Tranche A | Medium-term Notes                  
Debt Instrument [Line Items]                  
Proceeds from issuance of debt $ 17,000,000                
CIBC Agreement, Tranche B | Medium-term Notes                  
Debt Instrument [Line Items]                  
Accordion feature on face amount of debt 8,000,000 20,000,000              
CIBC Agreement, Tranche C | Medium-term Notes                  
Debt Instrument [Line Items]                  
Accordion feature on face amount of debt $ 7,000,000 $ 10,000,000