Annual report pursuant to Section 13 and 15(d)

Organization, Description of Business and Offerings - Public Offerings (Details)

v3.6.0.2
Organization, Description of Business and Offerings - Public Offerings (Details) - USD ($)
1 Months Ended
Oct. 24, 2016
Sep. 14, 2016
May 25, 2016
Nov. 12, 2015
Jul. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Nov. 18, 2015
Nov. 11, 2015
Oct. 31, 2013
Public Offerings [Abstract]                    
Common stock, shares issued (shares)           18,936,000 13,652,000     10,000
Gross proceeds from public offering   $ 5,500,000.0 $ 5,000,000              
Issuance of common stock (shares) 50,000 2,750,000 2,467,820   2,800          
Warrants to purchase common stock, issued (shares)   137,500   75,215       350    
Combined price for common stock and warrants issued (usd per share) $ 1.50 $ 2.00                
Exercise price of warrant (usd per share)       $ 4.00       $ 4.00 $ 10.00  
2015 Offering                    
Public Offerings [Abstract]                    
Common stock, shares issued (shares)       3,000,000            
Gross proceeds from public offering       $ 12,000,000            
Net proceeds from secondary public offering       $ 10,300,000            
Warrants to purchase common stock, issued (shares)       3,000,000            
Combined price for common stock and warrants issued (usd per share)       $ 4.00            
Exercise price of warrant (usd per share)       $ 5.00            
Over-Allotment Option                    
Public Offerings [Abstract]                    
Warrants to purchase common stock, issued (shares)       450,000            
Private Placement                    
Public Offerings [Abstract]                    
Warrants to purchase common stock, issued (shares)     1,233,910              
Combined price for common stock and warrants issued (usd per share)     $ 2.25              
Warrants, period before exercisable     6 months              
Warrants, exercise period     5 years              
Institutional Investors                    
Public Offerings [Abstract]                    
Issuance of common stock (shares)     2,150,000              
Warrants to purchase common stock, issued (shares)     1,075,000              
Combined price for common stock and warrants issued (usd per share)     $ 2.00              
Private Placement, Placement Agent                    
Public Offerings [Abstract]                    
Warrants to purchase common stock, issued (shares)     123,391              
Private Placement - September Offering                    
Public Offerings [Abstract]                    
Warrants to purchase common stock, issued (shares)   1,375,000                
Combined price for common stock and warrants issued (usd per share)   $ 2.25                
Warrants, period before exercisable   6 months                
Warrants, exercise period   5 years                
Board of Directors Chairman | Private Placement                    
Public Offerings [Abstract]                    
Issuance of common stock (shares)     317,820              
Warrants to purchase common stock, issued (shares)     158,910              
Combined price for common stock and warrants issued (usd per share)     $ 2.2025