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Summary of Significant Accounting Policies (Details 1) - Warrant [Member] - $ / shares
Dec. 31, 2017
Dec. 31, 2016
Summary Of Significant Accounting Policies [Line Items]    
Options 4,106,250 3,095,000
Warrants 1,044,583 2,044,583
Weighted average exercise price $ 1.06 $ 1.41