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Summary of Significant Accounting Policies (Details) - shares
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 6,386,532 4,807,787
Warrant [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 61,875 0
Employee Stock Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 1,684,416 786,667
Series A Convertible Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 2,932,431 3,232,294
Series A-2 Convertible Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 788,827 788,827
Series B Convertible Preferred Stock [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 918,983 0