Annual report pursuant to Section 13 and 15(d)

Share-based Compensation (Details)

v3.7.0.1
Share-based Compensation (Details) - $ / shares
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Number of Shares      
Forfeited (3,435) (31,427)  
Remaining Contractual Term in Years      
Outstanding     7 years 9 months 11 days
Stock Options Related to Employees [Member]      
Number of Shares      
Outstanding, beginning balance 786,926 760,286  
Granted 190,000 75,000  
Exercised (13,312) (16,933)  
Forfeited (41,678) (26,336)  
Canceled (366,544) (5,091)  
Outstanding, ending balance 555,392 786,926 760,286
Exercisable, ending balance 381,392 587,407  
Weighted Average Exercise Price      
Outstanding, beginning balance $ 3.08 $ 2.92  
Granted 2.66 4.43  
Exercised 2.63 2.63  
Forfeited 2.15 2.63  
Canceled 3.47 2.63  
Outstanding, ending balance 2.7 3.08 $ 2.92
Exercisable, ending balance $ 2.76 $ 3.16  
Remaining Contractual Term in Years      
Outstanding 7 years 4 months 20 days 6 years 10 months 24 days  
Exercisable, ending balance 6 years 8 months 1 day 6 years 6 months 22 days