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Summary of Significant Accounting Policies - Schedule of Earnings Per Share Anti-diluted (Details) - shares
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Excluded potentially dilutive securities 1,425,803 2,264,914
Warrants to Purchase Common Stock [Member]    
Excluded potentially dilutive securities 1,229,710 2,068,821
Series C-1 Convertible Preferred Stock [Member]    
Excluded potentially dilutive securities 196,093 196,093