Quarterly report pursuant to Section 13 or 15(d)

Unsecured Promissory Notes Payable - Narrative (Details)

v3.23.1
Unsecured Promissory Notes Payable - Narrative (Details)
 3 Months Ended
Jan. 26, 2023
USD ($)
$ / shares
Feb. 28, 2022
USD ($)
$ / shares
shares
Feb. 28, 2022
USD ($)
$ / shares
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Jan. 27, 2023
Jan. 12, 2023
$ / shares
shares
Sep. 15, 2020
USD ($)
investor
Short-Term Debt [Line Items]                
Exercise price (in dollars per share) | $ / shares             $ 10.00  
Warrants term (in years)           5 years 1 year  
Conversion price (in dollars per share) | $ / shares   $ 5.75 $ 5.75          
Cash paid   $ 1,440,548 $ 1,440,548          
Principal amount   1,400,000 1,400,000          
Interest payable   40,548 40,548          
Debt conversion     1,150,000          
Periodic payment     2,590,548          
2023 Notes Warrants                
Short-Term Debt [Line Items]                
Warrants (in shares) | shares             76,000  
Exercise price (in dollars per share) | $ / shares $ 9.00              
Weighted average remaining contractual life, options vested and exercisable (in years) 5 years              
Expected volatility rate 81.50%              
Risk free interest rate 3.62%              
Warrants term (in years) 5 years              
Warrant, fair value $ 380,000              
Black-Scholes Option Pricing Model | 2023 Notes Warrants                
Short-Term Debt [Line Items]                
Warrant fair value 400,000              
Unsecured Debt                
Short-Term Debt [Line Items]                
Debt, face amount   $ 600,000 $ 600,000          
Conversion shares (in shares) | shares   200,000            
Conversion price (in dollars per share) | $ / shares   $ 3.00 $ 3.00          
Unsecured Debt | Letter Agreement                
Short-Term Debt [Line Items]                
Debt, face amount   $ 2,000,000 $ 2,000,000          
September 2020 Notes                
Short-Term Debt [Line Items]                
Unpaid balance       $ 2,400,000 $ 8,000,000      
September 2020 Notes | Unsecured Debt                
Short-Term Debt [Line Items]                
Debt, face amount               $ 10,000,000
Interest rate       10.00%        
Number of investors | investor               2
Interest expense       $ 215,000 $ 233,000      
2023 Note | Unsecured Debt                
Short-Term Debt [Line Items]                
Debt, face amount $ 7,600,000              
Interest rate 10.00%              
2023 Note | Unsecured Debt | 2023 Notes Warrants                
Short-Term Debt [Line Items]                
Debt, face amount       7,200,000        
Debt discount       $ 400,000