Quarterly report pursuant to Section 13 or 15(d)

Debt - Term loan and line of credit (Details)

v3.22.2.2
Debt - Term loan and line of credit (Details) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Mar. 25, 2022
Jan. 06, 2021
Oct. 31, 2022
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Mar. 31, 2023
Jan. 01, 2023
Oct. 24, 2022
Mar. 31, 2022
Jan. 01, 2022
Aug. 13, 2021
Debt Instrument [Line Items]                        
Debt issuance costs incurred       $ 7,000 $ 140,000              
Long term debt       $ 12,152,000   $ 10,270,000            
LIBOR                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate           2.50%            
Floor interest rate           2.50%            
Federal Funds Rate                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate       2.85%                
Floor interest rate       2.50%                
Term Loan                        
Debt Instrument [Line Items]                        
Long term debt       $ 4,777,000   $ 5,414,000            
Term Loan | Wintrust Credit Facility                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity   $ 6,000,000                    
Long term debt       4,800,000   5,400,000            
Debt issuance costs       100,000   100,000            
Line of credit, net                        
Debt Instrument [Line Items]                        
Long term debt       7,375,000   4,856,000            
Line of credit, net | Wintrust Credit Facility                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity   $ 6,000,000                   $ 7,500,000
Floor interest rate   2.50%                    
Debt issuance costs incurred   $ 100,000                    
Covenant, fixed charge coverage ratio required   1.25                    
Covenant, minimum liquidity required       8,500,000           $ 13,000,000    
Restricted cash                     $ 6,900,000 $ 7,200,000
Long term debt       7,400,000   $ 4,900,000            
Debt issuance costs       $ 100,000                
Line of credit, net | Wintrust Credit Facility | Subsequent events                        
Debt Instrument [Line Items]                        
Maximum borrowing capacity                 $ 13,500,000      
Floor interest rate     3.75%                  
Restricted cash                 $ 6,300,000      
Line of credit, net | Wintrust Credit Facility | Forecast                        
Debt Instrument [Line Items]                        
Covenant, minimum liquidity required             $ 12,000,000          
Restricted cash               $ 6,000,000        
Line of credit, net | LIBOR | Wintrust Credit Facility                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate   2.50%                    
Line of credit, net | Federal Funds Rate | Wintrust Credit Facility                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate 2.85%                      
Line of credit, net | Federal Funds Rate | Wintrust Credit Facility | Subsequent events                        
Debt Instrument [Line Items]                        
Basis spread on variable interest rate     3.75%