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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parentheticals) - USD ($)
1 Months Ended 12 Months Ended
Sep. 29, 2020
Aug. 31, 2021
Feb. 28, 2021
Dec. 31, 2020
Common stock issued (in shares)       36,902
Common stock issued for cancellation of accrued compensation (in shares) 300,001      
Deferred compensation $ 1,500,000      
Conversion from Convertible Debentures to Conversion Units [Member]        
Shares issued upon conversion (in shares) 303,668      
Convertible debentures $ 1,200,000      
Related accrued interest $ 14,667      
Stock Purchase Warrants First Issuance [Member]        
Common stock issued (in shares)   3,839 145,866  
Pre-Funded Warrants [Member] | Conversion from Convertible Debentures to Conversion Units [Member]        
Pre-funded stock purchase warrants (in shares) 126,042