Business Combination (Schedule of Pro Forma Information) (Details) - Nesscap - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Business Acquisition [Line Items]
Net revenues	$ 38,096	$ 39,675	$ 69,948	$ 78,640
Net income (loss)	$ (9,346)	$ 1,264	$ (20,487)	$ (6,655)
Business Acquisition, Pro Forma Information [Abstract]
Basic (in dollars per share)	$ (0.25)	$ 0.04	$ (0.56)	$ (0.19)
Diluted (in dollars per share)	$ (0.25)	$ 0.03	$ (0.56)	$ (0.19)
Business Acquisition, Pro Forma Information, Weighted Average Common Shares Outstanding [Abstract]
Basic (in shares)	36,757	35,989	36,511	35,893
Diluted (in shares)	36,757	36,174	36,511	35,893