Annual report pursuant to Section 13 and 15(d)

Note 18 - Supplemental Disclosure for Statements of Cash Flows (Details Textual)

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Note 18 - Supplemental Disclosure for Statements of Cash Flows (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended 16 Months Ended
Feb. 29, 2020
Mar. 25, 2021
Sep. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 01, 2021
Nov. 30, 2021
Nov. 30, 2020
Interest Paid, Excluding Capitalized Interest, Operating Activities       $ 9,000 $ 6,000        
Stock Issued During Period, Value, Issued for Employee Bonuses         $ 171,522        
Stock Issued During Period, Shares, Employee Benefit Plan (in shares)       30,018 32,651        
Stock Issued During Period, Value, Employee Benefit Plan       $ 76,846 $ 39,834        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)       972,324   972,324      
Conversion from Series C Preferred Stock To Common Stock [Member]                  
Conversion of Stock, Shares Converted (in shares)         420,000        
Conversion of Stock, Shares Issued (in shares)         1,425,076        
Conversion from Series D Preferred Stock To Common Stock [Member]                  
Conversion of Stock, Shares Converted (in shares)   29,250   54,750 17,750        
Conversion of Stock, Shares Issued (in shares)   1,375,089   2,951,509 827,280 3,778,789      
Series C Preferred Stock [Member]                  
Preferred Stock, Deemed Dividend         $ 467,000        
Conversion of Stock, Shares Converted (in shares)     420,000   420,000        
Series D Preferred Stock [Member]                  
Preferred Stock, Deemed Dividend         $ 197,000        
Conversion of Stock, Shares Converted (in shares)         17,750        
Series OO Warrants [Member]                  
Class of Warrant or Right, Exercised During Period (in shares)         411,000        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)         300,595        
Notes Payable Issued for Prepayment of Insurance Premiums [Member] | IPFS [Member]                  
Debt Instrument, Face Amount             $ 566,000 $ 566,000 $ 442,000
Debt Instrument, Interest Rate, Stated Percentage             4.36% 4.36% 3.50%
Common Shares Issued in Lieu of 2019 Cash Bonus [Member]                  
Stock Issued During Period, Shares, Issued for Employee Bonuses (in shares)         94,159        
Stock Issued During Period, Value, Issued for Employee Bonuses         $ 172,000        
Office Lease [Member]                  
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability $ 100,432