CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 9,523	$ (320)	$ 2,218
Unrealized gain (loss) on derivative hedge transactions, net of tax	98	90	(40)
Comprehensive income (loss)	$ 9,621	$ (230)	$ 2,178