XML 46 R35.htm IDEA: XBRL DOCUMENT v3.21.2
Borrowing - Narrative (Details) - Term Loan - USD ($)
Nov. 12, 2021
Oct. 09, 2020
Sep. 30, 2021
Jul. 31, 2021
May 16, 2018
Debt Instrument [Line Items]          
Term loan face amount         $ 50,000,000
Interest-only payment extension term (in months)   12 months      
Closing fee (percent)         1.00%
Closing fee   $ 100,000   $ 100,000 $ 500,000
Final fee due upon maturity, acceleration, prepayment, or termination (percent)     4.95%    
Additional default interest rate     4.00%    
Subsequent event          
Debt Instrument [Line Items]          
Principal repayment $ 16,700,000        
Prior to first anniversary of closing date          
Debt Instrument [Line Items]          
Prepayment premium (as a percent)     3.00%    
After first anniversary through second anniversary of closing date          
Debt Instrument [Line Items]          
Prepayment premium (as a percent)     2.00%    
After second anniversary to maturity date          
Debt Instrument [Line Items]          
Prepayment premium (as a percent)     1.00%