Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 24,263us-gaap_NetIncomeLoss	$ 6,747us-gaap_NetIncomeLoss	$ 7,919us-gaap_NetIncomeLoss
OTHER COMPREHENSIVE INCOME (LOSS)
Foreign currency translation adjustments	(394)	159	115
COMPREHENSIVE INCOME	$ 23,869us-gaap_ComprehensiveIncomeNetOfTax	$ 6,906us-gaap_ComprehensiveIncomeNetOfTax	$ 8,034us-gaap_ComprehensiveIncomeNetOfTax

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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