Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Details 6)

v3.6.0.2
Stockholders' Equity (Details 6) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Number of Shares Available for Grant [Roll Forward]    
Balance at beginning 611,313  
Options authorized   1,363,637
Options granted (229,497) (777,779)
Options forfeited 61,749 25,455
Balance at ending 443,565 611,313
Options Outstanding Number of Shares [Roll Forward]    
Balance at beginning 752,324  
Options granted 229,497 777,779
Options exercised (4,500)  
Options forfeited (61,749) (25,455)
Balance at ending 915,572 752,324
Vested and exercisable 338,099  
Options Outstanding Weighted- Average Exercise Price Per Share [Roll Forward]    
Balance at beginning $ 3.95  
Options granted 8.56 $ 3.94
Options exercised 4.18  
Options forfeited 6.14 3.56
Balance at ending 4.96 $ 3.95
Vested and exercisable $ 4.46  
Options Outstanding Weighted- Average Remaining Contractural Life [Roll Forward]    
Balance at ending 3 years 8 months 23 days  
Vested and exercisable 3 years 9 months 29 days  
Options Outstanding Aggregate Intrinsic Value [Roll Forward]    
Balance at ending $ 7,465  
Vested and exercisable $ 2,925