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

Operating leases - Lease costs (Q3) (Details)

v3.20.4
Operating leases - Lease costs (Q3) (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 leases [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  
Incremental borrowing rate for operating leases 12.50%   12.50%   12.50%  
Short term lease costs   100 $ 100 100 $ 100  
Rent expense $ 200 $ 200 $ 400 $ 300 $ 41 $ 0