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Debt - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
May 31, 2022
Dec. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Debt            
Unamortized deferred finance costs     $ 800,000   $ 800,000  
Interest expense - term loan debt     $ 479,000 $ 522,000 $ 1,187,000 $ 798,000
Effective interest rate (as percentage)     9.80% 9.00% 9.80% 7.80%
Repayment of principal         $ 29,000,000 $ 17,375,000
Prepayment fee $ 1,400,000          
Interest and related expenses 300,000   $ 2,802,000 $ 1,443,000 3,511,000 1,723,000
Loss on extinguishment of debt     (2,324,000) $ (821,000) (2,324,000) $ (821,000)
Prepayment premium     1,400,000   1,400,000  
Other costs     $ 100,000   100,000  
IM Intellectual Property            
Debt            
Cash proceeds from sale 30,100,000          
New Loan Agreement            
Debt            
Face amount of loan   $ 29,000,000.0        
Percentage of closing fee   1.75%        
Legal and other fees   $ 500,000        
Deferred issuance cost   970,000        
Quarterly installment payment   625,000        
Final payment amount   $ 20,875,000        
Notice period to terminate or prepay   30 days        
Repayment of principal $ 28,400,000       $ 28,400,000  
New Loan Agreement | On Or Before First Anniversary            
Debt            
Maximum Prepayment Of Debt Amount   $ 1,400,000        
Percentage of prepayment premium   5.00%