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Summary of Significant Accounting Policies - Schedule of Anti Dilutive Securities Excludes from Computation of Earnings Per Share (Details) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Potential shares excluded from diluted net loss per share 1,628,000 1,204,000
Options to Purchase Common Stock [Member]    
Potential shares excluded from diluted net loss per share 1,553,000 737,000
Convertible Preferred Stock [Member]    
Potential shares excluded from diluted net loss per share 0 242,000
Warrants to Purchase Common Stock [Member]    
Potential shares excluded from diluted net loss per share 75,000 225,000