Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.7.0.1
Subsequent Events (Details) - USD ($)
 6 Months Ended
Aug. 02, 2017
Jun. 30, 2017
Dec. 31, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Subsequent Events (Textual)            
Offering price   $ 1.47        
Cash and cash equivalents   $ 11,456,272 $ 20,519,294 $ 20,455,248 $ 22,206,956 $ 25,643,273
Subsequent Events [Member]            
Subsequent Events (Textual)            
Public offering of shares 21,500,000          
Gross proceeds of offering amount $ 16,100,000          
Exercise price $ 1.05          
Offering price $ 0.75          
Subsequent event, description
On August 2, 2017, the Company completed an underwritten public offering of 21,500,000 shares of its common stock and warrants to purchase an aggregate of 18,275,000 shares of the Company’s common stock at an offering price to the public of $0.75 per share and related warrant. The warrants have an exercise price of $1.05 per share and have a term of five years. 
          
Stock options, vesting period 5 years          
Cash and cash equivalents $ 24,000,000          
Employee [Member]            
Subsequent Events (Textual)            
Issuance common shares to an employee for vested grant   1,500