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

Operating leases, Lease cost (FY) (Details)

v3.20.2
Operating leases, Lease cost (FY) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Operating Lease Costs [Abstract]            
Operating lease costs $ 110 $ 95 $ 331 $ 219 $ 369 $ 189
Variable lease costs 11 8 27 24 31 42
Total operating lease costs $ 121 103 $ 358 243 $ 400 231
Weighted-average remaining operating lease term 1 year 10 months 24 days   1 year 10 months 24 days   2 years 7 months 6 days  
Short term lease costs   $ 100 $ 100 $ 100 $ 100  
Rent expense         $ 500 $ 200
Weighted average discount rate 12.50%   12.50%   12.50%