Annual report pursuant to Section 13 and 15(d)

Stock-based Plans and Stock-based Compensation (Stock Option Activitiy) (Details)

v3.7.0.1
Stock-based Plans and Stock-based Compensation (Stock Option Activitiy) (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Stock-based Plans and Stock-based Compensation [Abstract]      
Outstanding at Beginning of Period 5,043,228 5,382,923  
Granted 1,771,500 3,348,000  
Exercised  
Forfeit/canceled (577,817) (2,511,522)  
Expired (479,031) (1,176,173)  
Outstanding at End of Period 5,757,880 5,043,228 5,382,923
Expected to vest at End of Period 5,757,880    
Exercisable at End of Period 2,394,332    
Unrecognized expense at End of Period $ 2,505,275    
Weighted Average Exercise Price Per Share      
Outstanding at Beginning of Period $ 1.37 $ 1.76  
Granted 0.72 1.05  
Exercised  
Forfeit/canceled 1.01 1.60  
Expired 1.73 1.82  
Outstanding at End of Period 1.16 $ 1.37 $ 1.76
Vested 1.17    
Exercisable at end of period $ 1.52    
Weighted Average Remaining Contractual Life (Years)      
Outstanding, Weighted Average Remaining Contractual Term (Years) 8 years 1 month 6 days 8 years 1 month 13 days 8 years 1 month 6 days
Expected, Weighted Average Remaining Contractual Term (Years) 7 years 1 month 28 days    
Exercisable, Weighted Average Remaining Contractual Term (Years) 7 years 1 month 24 days    
Aggregate Intrinsic value      
Aggregate Intrinsic Value, Outstanding $ 434,630 $ 209,690 $ 35,425
Expected to vest at End of Period $ 70,594