Quarterly report pursuant to Section 13 or 15(d)

Borrowing Arrangements - Term Loan (Details)

v3.21.2
Borrowing Arrangements - Term Loan (Details) - Term Loan [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 29, 2018
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Debt Instrument [Line Items]            
Aggregate principal amount $ 5,000          
Interest rate           3.50%
Fee in the event of liquidity event   $ 75   $ 75    
Interest expense   $ 12 $ 36 $ 66 $ 129  
Prime Rate [Member]            
Debt Instrument [Line Items]            
Spread on variable rate 0.25%