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

Debt - Short term loan and line of credit (FY) (Details)

v3.21.1
Debt - Short term loan and line of credit (FY) (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 29, 2020
Oct. 05, 2020
Jul. 16, 2020
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 19, 2019
Debt Instruments [Abstract]                
Repayment of line of credit           $ 6,360,000 $ 10,800,000  
Loss on extinguishment of debt       $ 394,000 $ 0 88,000 0  
Debt issuance costs incurred (less than)       116,000 0 85,000 720,000  
Repayments of line of credit       5,584,000 $ 0      
Short term loan, net       628,000   7,826,000 16,061,000  
Long term debt       31,089,000   32,611,000    
Short-term debt                
Debt Instruments [Abstract]                
Maximum borrowing capacity               $ 20,500,000
Revolving Credit Agreement                
Debt Instruments [Abstract]                
Maximum borrowing capacity               $ 7,500,000
Line of credit, net                
Debt Instruments [Abstract]                
Loss on extinguishment of debt       $ (400,000)        
Debt issuance costs and discounts           200,000 200,000  
Long term debt           5,000,000    
Shareholder Guaranties                
Debt Instruments [Abstract]                
Guaranty obligations           $ 20,000,000    
Warrants issuance ratio           0.325    
Short term loan                
Debt Instruments [Abstract]                
Repayments of line of credit $ 1,000,000 $ 11,000,000            
Short term loan, net           $ 7,826,000 16,061,000  
Debt issuance costs and discounts           $ 200,000 4,400,000  
Line of credit, net                
Debt Instruments [Abstract]                
Basis spread on variable interest rate       2.50%        
Floor interest rate       2.50%   3.25%    
Long term debt       $ 4,781,000   $ 5,023,000 $ 4,819,000  
Facilities Agreement                
Debt Instruments [Abstract]                
Repayment of line of credit     $ 5,100,000          
Facilities Agreement | Short term loan                
Debt Instruments [Abstract]                
Debt issuance costs and discounts       100,000   200,000    
Long term debt       5,800,000   7,800,000    
Facilities Agreement | Line of credit, net                
Debt Instruments [Abstract]                
Loss on extinguishment of debt     100,000          
Debt issuance costs and discounts           200,000    
Long term debt       $ 4,800,000   $ 5,000,000    
ABL Facility | Line of credit, net                
Debt Instruments [Abstract]                
Maximum borrowing capacity     7,500,000          
Debt issuance costs incurred (less than)     $ 100,000          
Floor interest rate       3.25%   3.25%    
LIBOR | Line of credit, net                
Debt Instruments [Abstract]                
Basis spread on variable interest rate           2.50%    
LIBOR | ABL Facility | Line of credit, net                
Debt Instruments [Abstract]                
Basis spread on variable interest rate       2.50%   2.50%