Annual report pursuant to Section 13 and 15(d)

Borrowing Arrangements - Schedule of Required Future Principal Payments (Detail)

v3.20.4
Borrowing Arrangements - Schedule of Required Future Principal Payments (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Total Long-Term Debt, net $ 14,900 $ 3,700
K2 Loan and Security Agreement    
Debt Instrument [Line Items]    
2021 0  
2022 4,105  
2023 7,537  
2024 3,358  
Total Principal Amounts 15,000  
Final Fee Due at Maturity 861  
Unamortized discount, deferred costs and final fee (935)  
Total Long-Term Debt, net $ 14,926