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2. Summary of Significant Accounting Policies (Details) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Total possible dilution 7,945,904 2,453,046
Warrant    
Total possible dilution 6,194,899 702,041
Convertible Preferred Stock    
Total possible dilution 1,751,005 1,751,005