Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements of Operations
Net revenues	$ 32,618	$ 29,055	$ 62,089	$ 50,006
Operating Expenses:
Cost of revenues	9,908	9,292	19,360	16,890
Selling, general and administrative	9,325	8,241	17,909	15,122
Depreciation and amortization	4,265	4,832	8,646	7,410
Other expenses	306	62	306	311
Loss on disposition of assets	34	16	31	14
Total operating expenses	23,838	22,443	46,252	39,747
Operating income	8,780	6,612	15,837	10,259
Other Expenses:
Interest expense, net	(3,008)	(2,936)	(5,991)	(5,843)
Income before income taxes	5,772	3,676	9,846	4,416
Income tax (expense) benefit	(2,341)	1,642	(3,952)	1,150
Net income	$ 3,431	$ 5,318	$ 5,894	$ 5,566
Earnings per share:
Basic (in dollars per share)	$ 0.08	$ 0.13	$ 0.14	$ 0.13
Diluted (in dollars per share)	$ 0.08	$ 0.13	$ 0.14	$ 0.13
Weighted average shares outstanding:
Basic (in shares)	42,737	42,345	42,566	42,259
Diluted (in shares)	43,290	42,518	43,267	42,507