Annual report pursuant to Section 13 and 15(d)

Investments - Summary (Details)

v3.22.1
Investments - Summary (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 15,497  
Gross Unrealized Gain 1  
Gross Unrealized Loss (15)  
Fair Value 15,483 $ 0
U.S. Treasury securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 8,154  
Gross Unrealized Gain 0  
Gross Unrealized Loss (13)  
Fair Value 8,141  
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 7,343  
Gross Unrealized Gain 1  
Gross Unrealized Loss (2)  
Fair Value $ 7,342