CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 2,610	$ 4,452	$ (4,754)	$ 4,613
Unrealized gain (loss) on derivative hedge transactions, net of tax	(89)	46	(136)	129
Comprehensive income (loss)	$ 2,521	$ 4,498	$ (4,890)	$ 4,742