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

Concentrations (FY) (Details)

v3.21.1
Concentrations (FY) (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Concentration Risk [Line Items]        
Concentration risk, percentage 100.00% 100.00% 100.00% 100.00%
Inventory purchases | Supplier concentration risk | Three vendors        
Concentration Risk [Line Items]        
Concentration risk, percentage     76.00%  
Inventory purchases | Supplier concentration risk | One vendor        
Concentration Risk [Line Items]        
Concentration risk, percentage       74.00%
Accounts receivable | Customer concentration risk | Two customers        
Concentration Risk [Line Items]        
Concentration risk, percentage 63.00%   72.00%  
Accounts receivable | Customer concentration risk | One customer        
Concentration Risk [Line Items]        
Concentration risk, percentage       44.00%
Gross sales | Customer concentration risk | Two customers        
Concentration Risk [Line Items]        
Concentration risk, percentage 42.00%   38.00%