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

Revenue (FY) (Details)

v3.20.4
Revenue (FY) (Details)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
Channel
Sep. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Channel
Point
Dec. 31, 2018
USD ($)
Revenue Concentration [Abstract]            
Number of revenue channels | Channel     2   2  
Revenue $ 11,135,000 $ 3,932,000 $ 33,302,000 $ 11,567,000 $ 15,577,000 $ 14,785,000
Maximum [Member]            
Revenue Concentration [Abstract]            
Product returns         $ 400,000 $ 700,000
Revenues [Member]            
Revenue Concentration [Abstract]            
Concentration risk percentage         10.00% 10.00%
Shipping Cost [Member]            
Revenue Concentration [Abstract]            
Revenue         $ 700,000 $ 900,000
Cost of revenue         $ 2,300,000 2,500,000
Directly to Consumer [Member]            
Revenue Concentration [Abstract]            
Number of points received by customers for every $1 spent | Point         12  
Dollar amount of gift card received for every 500 points earned         $ 5  
Estimated redemption rate of loyalty points earned         37.00%  
Dollar amount of loyalty program awards earned but not redeemed 300,000   300,000   $ 200,000  
Revenue $ 100,000 $ 100,000 $ 300,000 $ 300,000   0
Directly to Consumer [Member] | Maximum [Member]            
Revenue Concentration [Abstract]            
Dollar amount of loyalty program awards earned but not redeemed           $ 100,000
Revenue         $ 200,000  
Directly to Consumer [Member] | Revenues [Member]            
Revenue Concentration [Abstract]            
Concentration risk percentage 24.00% 91.00% 25.00% 90.00% 89.00%  
Directly to Consumer [Member] | Shipping Cost [Member]            
Revenue Concentration [Abstract]            
Revenue $ 200,000 $ 200,000 $ 400,000 $ 500,000    
Cost of revenue 300,000 $ 600,000 1,000,000.0 $ 1,800,000    
Wholesale [Member]            
Revenue Concentration [Abstract]            
Cost of revenue $ 100,000   $ 100,000      
Wholesale [Member] | Revenues [Member]            
Revenue Concentration [Abstract]            
Concentration risk percentage 76.00% 9.00% 75.00% 10.00% 11.00%  
Wholesale [Member] | Shipping Cost [Member]            
Revenue Concentration [Abstract]            
Cost of revenue   $ 0   $ 0