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Consolidated Statements of Changes in Stockholders’ Equity (Parentheticals) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]    
Issuance of common stock and warrants $ 572,500 $ 806,243
Issuance of common stock   $ 525,000
Issuance of common stock, common stock warrants and prefunded warrants $ 1,591,600