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Significant Accounting Policies (Details 1) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Number of shares:        
Preferred Stock, options and warrants excluded from the calculations of diluted loss per share 16,693,339 6,986,873 16,693,339 7,295,167