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

Stockholders' deficit, Options Granted and Outstanding (FY) (Details)

v3.20.4
Stockholders' deficit, Options Granted and Outstanding (FY) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
May 06, 2019
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Total number of options [Roll Forward]              
Legacy options (in shares)       7,791,833 38,462 38,462  
Acquired (in shares)           5,250,000  
Granted (in shares)           2,503,371  
Options outstanding (in shares)           7,791,833 38,462
Weighted average exercise price [Abstract]              
Legacy options (in dollars per share)       $ 1.85 $ 6.76 $ 6.76  
Acquired (in dollars per share)           1.82  
Granted (in dollars per share)           1.83  
Vested during period (in dollars per share)           1.89  
Options outstanding (in dollars per share)           $ 1.85 $ 6.76
Vested options, number [Abstract]              
Legacy options (in shares)       2,716,791 38,462 38,462  
Acquired (in shares)           0  
Granted (in shares)           0  
Vested during period (in shares)           2,678,329  
Options outstanding (in shares)           2,716,791 38,462
Vested options, weighted average exercise price (in dollars per share)           $ 1.89  
Vested options, weighted average remaining contractual term           9 years 3 months 18 days  
Vested options, aggregate intrinsic value           $ 2,357  
Nonvested options, number [Roll Forward]              
Legacy options (in shares)       5,075,042 0 0  
Acquired (in shares)           5,250,000  
Granted (in shares)           2,503,371  
Vested during period (in shares)           (2,678,329)  
Options outstanding (in shares)           5,075,042 0
Options expected to vest (in shares)           5,075,042  
Non-vested options, weighted average exercise price (in dollars per share)           $ 1.82  
Non-vested options, weighted average remaining contractual term           9 years 7 months 6 days  
Non-vested options, aggregate intrinsic value           $ 4,448  
Weighted average grant date fair value [Abstract]              
Legacy options (in dollars per share)       $ 0.97 $ 8.06 $ 8.06  
Acquired (in dollars per share)           0.92  
Granted (in dollars per share)           0.97  
Vested during period (in dollars per share)           1.02  
Outstanding options (in dollars per share)           $ 0.97 $ 8.06
Share-based compensation expense   $ 1,543 $ 2,496 $ 7,047 $ 6,708    
Estimated term           3 years  
Stock Options [Member]              
Total number of options [Roll Forward]              
Granted (in shares)     160,000 300,000 5,993,000   38,462
Weighted average exercise price [Abstract]              
Granted (in dollars per share)             $ 6.76
Nonvested options, number [Roll Forward]              
Granted (in shares)     160,000 300,000 5,993,000   38,462
2019 Incentive Award Plan [Member]              
Total number of options [Roll Forward]              
Legacy options (in shares)       7,753,371 164,356 164,356  
Options outstanding (in shares)           7,753,371 164,356
2019 Incentive Award Plan [Member] | Stock Options [Member]              
Total number of options [Roll Forward]              
Legacy options (in shares)         164,356 164,356  
Granted (in shares) 2,503,371            
Options outstanding (in shares)             164,356
Vested options, number [Abstract]              
Legacy options (in shares)       912,917      
Options outstanding (in shares)           912,917  
Vested options, weighted average remaining contractual term             1 year 9 months 18 days
Nonvested options, number [Roll Forward]              
Granted (in shares) 2,503,371            
Weighted average grant date fair value [Abstract]              
Share-based compensation expense           $ 10,300 $ 400
Incremental share-based compensation related to option re-pricing           $ 600  
Estimated term           3 years  
Dividend yield           0.00%  
Risk-free rate, minimum           1.41%  
Risk-free rate, maximum           2.39%  
Volatility, minimum           55.00%  
Volatility, maximum           62.10%  
2019 Incentive Award Plan [Member] | Stock Options [Member] | Minimum [Member]              
Weighted average grant date fair value [Abstract]              
Award exercise period           5 years  
Exercise price (in dollars per share)           $ 1.82  
2019 Incentive Award Plan [Member] | Stock Options [Member] | Maximum [Member]              
Weighted average grant date fair value [Abstract]              
Award exercise period           10 years  
Exercise price (in dollars per share)           $ 2.70