Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (6,356)	$ (5,037)	$ (6)	$ (9,138)
Change in fair value of cash flow hedge, net of tax expense of $14 and $138 for the three and nine months ended September 30, 2018, respectively and net of tax expense of $14 and net of tax benefit of $85 for the three and nine months ended September 30, 2017, respectively	37	17	383	127
Total comprehensive (loss) income	$ (6,319)	$ (5,020)	$ 377	$ (9,011)