Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plan (Details)

v2.4.1.9
Employee Benefit Plan (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]      
Expenses related to employee benefits plan $ 125us-gaap_DefinedContributionPlanCostRecognized $ 104us-gaap_DefinedContributionPlanCostRecognized $ 71us-gaap_DefinedContributionPlanCostRecognized