Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.7.0.1
Subsequent Events (Details) - USD ($)
 12 Months Ended
Mar. 03, 2017
Dec. 31, 2015
Subsequent Event [Line Items]    
Placement agent fee   $ 1,325,739
Subsequent Event | Private Placement    
Subsequent Event [Line Items]    
Aggregate gross proceeds $ 15,000,000  
Net cash proceeds 13,600,000  
Placement agent fee $ 1,100,000  
Subsequent Event | Private Placement | Common stock    
Subsequent Event [Line Items]    
Shares of common stock and preferred stock purchased together with warrants (in shares) 5,220,826  
Subsequent Event | Private Placement | Preferred stock    
Subsequent Event [Line Items]    
Shares of common stock and preferred stock purchased together with warrants (in shares) 708,430  
Subsequent Event | Private Placement | Definitive Securities Purchase Agreement    
Subsequent Event [Line Items]    
Common stock or preferred stock sold together with a warrant to common stock eligible for purchase (in shares) 1  
Collective price (in dollars per share) $ 2.535  
Common stock purchased with common stock and preferred stock sold together with warrants (in shares) 5,929,256  
Exercise price of warrants (in dollars per share) $ 2.41  
Non-exercisable term of warrants 6 months  
Expiration period of warrants 3 years  
Period after closing date 30 days  
Subsequent Event | Private Placement | Placement Agent Warrant    
Subsequent Event [Line Items]    
Common stock purchased with common stock and preferred stock sold together with warrants (in shares) 237,170  
Exercise price of warrants (in dollars per share) $ 2.89  
Non-exercisable term of warrants 12 months  
Expiration period of warrants 3 years