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

Nature of business and summary of significant accounting policies - Restricted cash (FY) (Details)

v3.21.1
Nature of business and summary of significant accounting policies - Restricted cash (FY) (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Cash [Abstract]      
Restricted cash $ 63 $ 63 $ 173
Credit Card      
Restricted Cash [Abstract]      
Restricted cash   $ 100 $ 200