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Note 8 - Notes Payable (Details Textual) - USD ($)
1 Months Ended
Sep. 20, 2022
Aug. 20, 2022
Jun. 20, 2021
Feb. 20, 2021
Dec. 30, 2020
Sep. 25, 2020
Aug. 21, 2020
Aug. 11, 2020
Aug. 03, 2020
Jun. 20, 2020
May 18, 2020
May 07, 2020
Apr. 28, 2020
Mar. 27, 2020
Dec. 19, 2019
Jun. 30, 2014
Jan. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
May 02, 2016
Long-term Debt, Gross                                   $ 9,109,098   $ 10,082,549    
Sale of Promissory Note, Periodic Purchase Amount                           $ 148,000                
Other Accrued Liabilities, Current                                   249,783   2,186,197    
Proceeds from Paycheck Protection Program Under CARES Act                       $ 491,493                    
Payments for (Proceeds from) Deposit on Loan                     $ 159,899                      
Tranche from ESOUSA Agreement [Member]                                            
Other Accrued Liabilities, Current                                   145,000 $ 145,000   $ 145,000  
Esousa Holdings LLC [Member]                                            
Sale of Promissory Note, Percent of Gross Proceeds of Equity Sale Used to Finance Purchase of Note                           88.00%                
Sale of Promissory Note, Periodic Purchase Amount                           $ 148,000                
Proceeds from Sale of Notes Payable                         $ 143,000 148,000                
Stock Issued During Period, Shares, New Issues (in shares)           50,000 45,654 66,190         65,862       200,000          
RBL Capital Group, LLC [Member]                                            
Proceeds from Sale of Notes Payable         $ 1,960,000 $ 426,000 $ 401,000 $ 707,000         $ 143,000 148,000                
Stock Issued During Period, Shares, New Issues (in shares)         200,000                                  
RBL Capital Group, LLC [Member] | Tranche from ESOUSA Agreement [Member]                                            
Other Accrued Liabilities, Current                                       2,000,000.0    
Promissory Note Issued to RBL Capital Group [Member]                                            
Long-term Debt, Gross                 $ 15,000,000         2,000,000                
Proceeds from Issuance of Debt                           $ 2,000,000                
RBL Capital Group, LLC [Member]                                            
Long-term Debt, Gross                                   $ 8,949,199   $ 9,431,157    
RBL Capital Group, LLC [Member] | RBL Loan Agreement [Member]                                            
Debt Instrument, Term (Month)                               18 months            
Line of Credit Facility, Maximum Borrowing Capacity                               $ 10,000,000           $ 15,000,000
RBL Capital Group, LLC [Member] | RBL Loan Agreement [Member] | Prime Rate [Member]                                            
Debt Instrument, Basis Spread on Variable Rate                               10.65%            
RBL Capital Group, LLC [Member] | RBL Loan Agreement [Member] | Minimum [Member]                                            
Debt Instrument, Interest Rate, Effective Percentage                               13.90%            
RBL Capital Group, LLC [Member] | RBL Term Note [Member]                                            
Debt Instrument, Term (Month)                   20 months                        
Proceeds from Lines of Credit, Total                             $ 1,000,000              
Long-term Debt, Gross                   $ 9,431,157         $ 9,431,157              
Debt Instrument, Interest Rate, Stated Percentage                             14.19%              
Debt Instrument, Periodic Payment, Total                   137,109                        
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid                   3,290,475                        
Debt Issuance Costs, Gross                   894,311                        
Payments of Debt Issuance Costs     $ 25,000 $ 25,000                                    
RBL Capital Group, LLC [Member] | RBL Term Note [Member] | Forecast [Member]                                            
Payments of Debt Issuance Costs $ 750,000 $ 94,311                                        
RBL Capital Group, LLC [Member] | RBL Term Note [Member] | Debt Instrument, Redemption, Period One [Member]                                            
Debt Instrument, Periodic Payment, Interest                   67,746         $ 117,329              
RBL Capital Group, LLC [Member] | RBL Term Note [Member] | Debt Instrument, Redemption, Period Two [Member]                                            
Debt Instrument, Periodic Payment, Interest                             111,523              
Debt Instrument, Periodic Payment, Total                   $ 5,540,128                        
RBL Capital Group, LLC [Member] | RBL Term Note [Member] | Debt Instrument, Redemption, Period Three [Member]                                            
Debt Instrument, Periodic Payment, Total                             $ 258,620              
RBL Capital Group, LLC [Member] | RBL Term Note, One [Member]                                            
Debt Instrument, Interest Rate, Stated Percentage                   14.19%                        
Debt Instrument, Face Amount                   $ 4,431,157                        
RBL Capital Group, LLC [Member] | RBL Term Note, Two [Member]                                            
Debt Instrument, Interest Rate, Stated Percentage                   14.19%                        
Debt Instrument, Periodic Payment, Interest                   $ 59,125                        
Debt Instrument, Face Amount                   $ 5,000,000                        
Priority Payment Systems LLC [Member]                                            
Proceeds from Issuance of Debt                 $ 15,000,000