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Equity Instruments (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
Aug. 31, 2017
Dec. 31, 2017
Jun. 30, 2015
Equity Instruments (Textual)      
Weighted average remaining years to vest (in years)   1 year 4 months 13 days  
Warrants to purchase of common stock 6,314,671    
Warrants exercise price $ 3.60    
Warrants exercise price term 5 years    
2015 Stock Option and Incentive Plan [Member]      
Equity Instruments (Textual)      
Aggregate shares of common stock     3,000,000
Unrecognized expense share-based compensation expense   $ 390,000  
Grant purchase   2,271,205