Quarterly report pursuant to Section 13 or 15(d)

Debt - Term loan and line of credit (Details)

v3.21.2
Debt - Term loan and line of credit (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Jan. 06, 2021
USD ($)
Sep. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Jan. 01, 2023
USD ($)
Jan. 01, 2022
USD ($)
Aug. 13, 2021
USD ($)
Aug. 12, 2021
USD ($)
Jul. 16, 2020
USD ($)
Debt Instrument [Line Items]                        
Long term debt   $ 10,405,000     $ 10,405,000   $ 32,611,000          
Loss on extinguishment of debt   $ 0   $ 88,000 (457,000) $ 88,000            
Debt issuance costs incurred         $ 140,000 $ 85,000            
Line of credit, net                        
Debt Instrument [Line Items]                        
Loss on extinguishment of debt     $ (400,000)                  
Line of credit, net | Old Plank Trail Community Bank, N.A.                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity $ 6,000,000                      
Floor interest rate   2.50%     2.50%              
Debt issuance costs incurred $ 100,000                      
Fixed Charge Coverage Ratio 1.25                      
Term Loan | Old Plank Trail Community Bank, N.A.                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity $ 6,000,000                      
Line of credit, net                        
Debt Instrument [Line Items]                        
Long term debt   $ 4,846,000     $ 4,846,000   $ 5,023,000          
Basis spread on variable interest rate         2.50%              
Floor interest rate   2.50%     2.50%   3.25%          
ABL Facility | Line of credit, net                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity                       $ 7,500,000
Floor interest rate   3.25%     3.25%              
Wintrust Credit Facility | Line of credit, net                        
Debt Instrument [Line Items]                        
Long term debt   $ 4,800,000     $ 4,800,000   $ 5,000,000          
Maximum borrowing capacity                   $ 7,500,000 $ 6,000,000  
Restricted cash                   $ 7,200,000    
Debt issuance costs and discounts   100,000     100,000   200,000          
Wintrust Credit Facility | Line of credit, net | Forecast                        
Debt Instrument [Line Items]                        
Restricted cash               $ 6,000,000 $ 6,900,000      
Wintrust Credit Facility | Term Loan                        
Debt Instrument [Line Items]                        
Long term debt   5,600,000     5,600,000   7,800,000          
Debt issuance costs and discounts   $ 100,000     $ 100,000   $ 200,000          
LIBOR | Line of credit, net | Old Plank Trail Community Bank, N.A.                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate         2.50%              
LIBOR | Line of credit, net                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate             2.50%          
LIBOR | ABL Facility | Line of credit, net                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate         2.50%