Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) Per Share (Details Textual)

v3.19.1
Net Income (Loss) Per Share (Details Textual) - shares
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Non-employees [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock 1,080,059  
Non-Director [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock 346,936  
Restricted stock units [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock 86,250  
Stock options [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock   1,188,392
Warrants [Member]    
Net Income (Loss) Per Share (Textual)    
Warrants to purchase shares of common stock   86,250