XML 102 R71.htm IDEA: XBRL DOCUMENT v3.21.2
Convertible Promissory Notes -10Q (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 33 Months Ended
Dec. 22, 2020
Feb. 28, 2021
Dec. 31, 2020
May 31, 2020
Apr. 30, 2020
Apr. 30, 2019
Sep. 30, 2021
Sep. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2017
Jul. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]                                
Interest expense             $ 1,261 $ 95,211   $ 64,555 $ 566,790 $ 661,224 $ 1,100,390      
Convertible Notes Payable | Junior Convertible Notes                                
Debt Instrument [Line Items]                                
Converted amount       $ 11,700,000 $ 5,700,000                      
Convertible debt beneficial conversion feature       $ 7,700,000                 200,000      
Converted principal         5,100,000                      
Converted interest         600,000                      
Interest expense                         1,100,000      
Convertible Notes Payable | Junior Convertible Notes | Chief Financial Officer And Immediate Family Member                                
Debt Instrument [Line Items]                                
Notes issued to related parties                         5,700,000      
Convertible Notes Payable | Junior Convertible Notes | Affiliated Entity                                
Debt Instrument [Line Items]                                
Interest expense payable to related party                         500,000      
Convertible Notes Payable | Junior Convertible Notes | Series Seed Preferred Stock                                
Debt Instrument [Line Items]                                
Shares issued as a result of converted debt (in shares)       2,615,553                        
Convertible Notes Payable | Junior Convertible Notes | Series Seed Preferred Stock | Chief Financial Officer And Immediate Family Member                                
Debt Instrument [Line Items]                                
Shares issued as a result of converted debt (in shares)       840,363                        
Convertible Notes Payable | Junior Convertible Notes, Inception Through December 2018                                
Debt Instrument [Line Items]                                
Issue date fair value                               $ 15,800,000
Face amount                               $ 10,700,000
Convertible Notes Payable | Junior Convertible Notes, Inception Through December 2018 | Minimum                                
Debt Instrument [Line Items]                                
Stated interest rate                               3.00%
Convertible Notes Payable | Junior Convertible Notes, Inception Through December 2018 | Maximum                                
Debt Instrument [Line Items]                                
Stated interest rate                               7.73%
Convertible Notes Payable | Junior Convertible Notes, January 2019 through April 2019                                
Debt Instrument [Line Items]                                
Face amount           $ 1,500,000                    
Convertible Notes Payable | Junior Convertible Notes, January 2019 through April 2019 | Minimum                                
Debt Instrument [Line Items]                                
Stated interest rate           6.00%                    
Convertible Notes Payable | Junior Convertible Notes, January 2019 through April 2019 | Maximum                                
Debt Instrument [Line Items]                                
Stated interest rate           15.00%                    
Convertible Notes Payable | Junior Convertible Notes, April 2019 | Chief Financial Officer And Immediate Family Member                                
Debt Instrument [Line Items]                                
Notes issued to related parties           $ 1,900,000                    
Interest rate of notes payable to related parties           15.00%                    
Convertible Notes Payable | Junior Convertible Notes, July 2019                                
Debt Instrument [Line Items]                                
Face amount                             $ 1,200,000  
Convertible Notes Payable | Bridge Note Qualified Financing                                
Debt Instrument [Line Items]                                
Immediate conversion financing proceeds threshold                 $ 1,000,000              
Conversion ratio                 0.80              
Convertible Notes Payable | Bridge Note Qualified Financing | Affiliated Entity                                
Debt Instrument [Line Items]                                
Notes issued to related parties                 $ 500,000              
Interest rate of notes payable to related parties                 6.00%              
Convertible Notes Payable | Bridge Note Qualified Financing | Series A Preferred Stock | Affiliated Entity                                
Debt Instrument [Line Items]                                
Shares issued as a result of converted debt (in shares) 78,178                              
Convertible Notes Payable | Convertible Bridge Notes                                
Debt Instrument [Line Items]                                
Converted amount     $ 600,000                          
Convertible debt beneficial conversion feature     $ 100,000         19,000     100,000   100,000      
Interest expense               8,000     23,000 30,000 $ 5,000      
Convertible Notes Payable | Convertible Bridge Notes | Series A Preferred Stock                                
Debt Instrument [Line Items]                                
Shares issued as a result of converted debt (in shares)     78,178                          
Convertible Notes Payable | Senior Convertible Notes, April 2020                                
Debt Instrument [Line Items]                                
Converted amount   $ 6,100,000                            
Convertible debt beneficial conversion feature               200,000   9,000 1,900,000 2,100,000        
Immediate conversion financing proceeds threshold         2,500,000                      
Converted principal   5,700,000                            
Converted interest   $ 300,000                            
Interest expense               100,000   45,000 200,000 300,000        
Interest expense payable to related party                       100,000        
Convertible Notes Payable | Senior Convertible Notes, April 2020 | Affiliated Entity                                
Debt Instrument [Line Items]                                
Notes issued to related parties         $ 2,500,000                      
Interest rate of notes payable to related parties         6.00%                      
Accrued interest         $ 400,000                      
Interest expense payable to related party               $ 45,000   $ 23,000 $ 88,000          
Convertible Notes Payable | Senior Convertible Notes, April 2020 | Series A Preferred Stock                                
Debt Instrument [Line Items]                                
Shares issued as a result of converted debt (in shares)   844,824                            
Convertible Notes Payable | Senior Convertible Notes, April 2020 | Series A Preferred Stock | Affiliated Entity                                
Debt Instrument [Line Items]                                
Shares issued as a result of converted debt (in shares)   430,467                            
Loans Payable | Demand Notes | Chief Financial Officer And Immediate Family Member                                
Debt Instrument [Line Items]                                
Notes issued to related parties                           $ 1,800,000    
Loans Payable | Demand Notes | Minimum | Chief Financial Officer And Immediate Family Member                                
Debt Instrument [Line Items]                                
Interest rate of notes payable to related parties                           3.00%    
Loans Payable | Demand Notes | Maximum | Chief Financial Officer And Immediate Family Member                                
Debt Instrument [Line Items]                                
Interest rate of notes payable to related parties                           6.00%    
Payment Protection Program Loan                                
Debt Instrument [Line Items]                                
Face amount       $ 100,000                        
Stated interest rate       1.00%                        
Outstanding principal balance     $ 124,000                 $ 124,000