Annual report pursuant to Section 13 and 15(d)

Stock Based Awards - Summary of Stock Option Transactions (Details)

v3.8.0.1
Stock Based Awards - Summary of Stock Option Transactions (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Number of shares available for grant, beginning 1,612,000  
Number of shares available for grant, ending 1,656,000 1,612,000
Total options outstanding, Granted
Weighted Average Exercise Price, ending $ 7.24  
Aggregate Intrinsic Value, ending $ 1,640  
2007 And 2015 plan [Member]    
Number of shares available for grant, beginning 1,612,000  
Number of shares available for grant, Exercised  
Number of shares available for grant, Granted  
Number of shares available for grant, Cancelled 44,000  
Number of shares available for grant, ending 1,656,000 1,612,000
Total options outstanding, beginning 812,000  
Total options outstanding, Exercised (57,000)  
Total options outstanding, Granted  
Total options outstanding, Cancelled (44,000)  
Total options outstanding, ending 711,000 812,000
Weighted Average Exercise Price, outstanding $ 9.00  
Weighted Average Exercise Price, Exercised 1.41  
Weighted Average Exercise Price, Granted  
Weighted Average Exercise Price, Cancelled 28.87  
Weighted Average Exercise Price, ending $ 8.39 $ 9.00
Aggregate Intrinsic Value, outstanding $ 5,457  
Aggregate Intrinsic Value, ending $ 1,640 $ 5,457