Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Details)

v3.7.0.1
Stock-Based Compensation (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Number of Options      
Outstanding at beginning of year 5,437,064    
Granted 479,457    
Exercised (50,000) (146,625) (468,000)
Canceled and forfeited (2,186,906)    
Expired (299,000)    
Outstanding at end of year 3,380,615 5,437,064  
Exercisable at end of year 2,548,681    
Weighted Average Exercise Price      
Outstanding at beginning of period $ 1.96    
Granted, 1.05    
Exercised .27    
Canceled and Forfeited 1.69    
Expired 2.42    
Outstanding at end of period 2.00 $ 1.96  
Exercisable at end of period $ 2.07    
Weighted Average Remaining Contractual Life (years)      
Outstanding at end of year 6 years 6 months    
Exercisable at end of year 6 years 1 month 6 days    
Aggregate Intrinsic Value      
Outstanding at end of year $ 1,601,300    
Exercisable at end of year $ 1,601,300