General form of registration statement for all companies including face-amount certificate companies

Summary of Significant Accounting Policies - Cash and Cash Equivalents and Restricted Cash (Details)

v3.21.2
Summary of Significant Accounting Policies - Cash and Cash Equivalents and Restricted Cash (Details)
$ in Thousands
1 Months Ended
Jun. 30, 2021
USD ($)
ft²
Dec. 31, 2020
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Accounting Policies [Abstract]          
Cash and cash equivalents $ 11,948 $ 15,517   $ 9,815  
Restricted cash (Other assets) 1,200 0      
Total cash and cash equivalents, and restricted cash $ 13,148 $ 15,517 $ 25,270 $ 9,815 $ 7,695
Letter of Credit          
Property, Plant and Equipment [Line Items]          
Debt term 1 year        
Borrowing capacity $ 1,200        
Facility          
Property, Plant and Equipment [Line Items]          
Area of property intended to be leased | ft² 80,000