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Note 5 - Related Parties (Details Textual)
1 Months Ended 6 Months Ended 12 Months Ended
Apr. 12, 2022
USD ($)
Dec. 29, 2021
USD ($)
$ / shares
Dec. 12, 2020
USD ($)
shares
Nov. 16, 2020
USD ($)
Nov. 12, 2020
USD ($)
shares
May 31, 2020
USD ($)
$ / shares
Jun. 30, 2022
Jun. 30, 2023
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
$ / shares
Jun. 29, 2020
USD ($)
$ / shares
Feb. 12, 2020
USD ($)
Interest Paid, Excluding Capitalized Interest, Operating Activities                 $ 0 $ 52,000    
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares                 $ 0.01 $ 0.01 $ 0.16  
Conversion of One Half of Board Note Principal Plus Accrued Interest into Series D Preferred Stock [Member]                        
Debt Conversion, Converted Instrument, Amount         $ 232,000              
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares         231.6              
Debt Instrument, Convertible, Conversion Ratio         1,000              
Repayments of Convertible Debt         $ 232,000              
Conversion of Entire Second Board Note Principal Plus Accrued Interest into Series D Preferred Stock [Member]                        
Debt Conversion, Converted Instrument, Amount     $ 103,000                  
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares     102.8                  
Debt Instrument, Convertible, Conversion Ratio     1,000                  
Advisory Board [Member]                        
Professional and Contract Services Expense, Total                 $ 34,000 $ 0    
Series D Preferred Stock [Member]                        
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares   $ 0.01       $ 0.01            
Nantahala Capital Management, LLC [Member] | Imageware Systems, Inc [Member]                        
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners   37.30%                    
Term Loan and Security Agreement [Member] | Secured Term Loan Credit Facility [Member]                        
Line of Credit Facility, Maximum Borrowing Capacity   $ 2,500,000             $ 2,500,000      
Debt Instrument, Term (Month)   12 months                    
Proceeds from Lines of Credit, Total   $ 600,000                    
Debt Instrument, Redemption Price, Percentage   105.00%                    
Term Loan and Security Agreement [Member] | Secured Term Loan Credit Facility [Member] | Forecast [Member]                        
Debt Instrument, Interest Rate During Period             12.00% 17.00%        
Term Loan and Security Agreement [Member] | Secured Term Loan Credit Facility [Member] | Forecast [Member] | Subsequent Event [Member]                        
Proceeds from Lines of Credit, Total $ 1,050,000                      
Factoring Agreement [Member] | Former Director [Member]                        
Debt Instrument, Face Amount                       $ 350,000
Debt Instrument, Interest Rate, Stated Percentage                       1.00%
Debt Instrument, Collateral Amount                       $ 500,000
Interest and Debt Expense, Total                   45,000    
Interest Paid, Excluding Capitalized Interest, Operating Activities           $ 35,000            
Repayments of Short-term Debt, Total       $ 360,000                
Convertible Promissory Notes [Member] | Second Former Director [Member]                        
Proceeds from Convertible Debt                   450,000    
Convertible Debt, Total                     $ 450,000  
Convertible Promissory Notes [Member] | Second Former Director [Member] | Convertible Debt [Member]                        
Debt Instrument, Interest Rate, Stated Percentage                     5.00%  
Debt Instrument, Maturity, Threshold Net Proceeds                   3,000,000    
Convertible Promissory Notes [Member] | Third Former Member [Member]                        
Proceeds from Convertible Debt                   100,000    
Convertible Debt, Total                     $ 100,000  
Convertible Promissory Notes [Member] | Third Former Member [Member] | Convertible Debt [Member]                        
Debt Instrument, Interest Rate, Stated Percentage                     5.00%  
Debt Instrument, Maturity, Threshold Net Proceeds                   $ 3,000,000