CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 4,142	$ 9,523	$ (320)
Unrealized gain on derivative hedge transactions, net of tax	78	98	90
Comprehensive income (loss)	$ 4,220	$ 9,621	$ (230)