CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Net sales	$ 354,060	$ 328,468	$ 978,629	$ 891,847
Cost of goods sold	269,668	253,087	746,781	691,166
Gross profit	84,392	75,381	231,848	200,681
Selling, general and administrative expenses	73,665	66,931	211,878	188,458
Depreciation expense	1,681	1,456	4,790	4,716
Amortization expense	563	563	1,690	1,672
Impairment of assets held for sale	0	0	48	0
Public offering transaction-related costs	60	9,322	508	10,008
Restructuring expense	2	31	11	130
Total operating expenses	75,971	78,303	218,925	204,984
Income (loss) from operations	8,421	(2,922)	12,923	(4,303)
Other income (expense)
Interest expense	(712)	(892)	(2,011)	(3,150)
Other income, net	197	200	610	596
Income (loss) from continuing operations before income taxes	7,906	(3,614)	11,522	(6,857)
Income tax expense	(2,972)	(1,989)	(4,417)	(1,076)
Income (loss) from continuing operations	4,934	(5,603)	7,105	(7,933)
Income from discontinued operations, net of income tax expense of $25, $54, $133 and $237, respectively	40	90	208	341
Net income (loss)	4,974	(5,513)	7,313	(7,592)
Redeemable Class B Senior Preferred stock deemed dividend	0	(363)	0	(1,836)
Income (loss) attributable to common stockholders	$ 4,974	$ (5,876)	$ 7,313	$ (9,428)
Weighted average common shares outstanding
Basic (in shares)	25,733,833	19,813,209	25,713,688	15,718,667
Diluted (in shares)	26,229,323	19,813,209	26,218,405	15,718,667
Basic income (loss) per share
Income (loss) from continuing operations (in dollars per share)	$ 0.19	$ (0.30)	$ 0.27	$ (0.62)
Income from discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ 0.01	$ 0.02
Net income (loss) per share (in dollars per share)	$ 0.19	$ (0.30)	$ 0.28	$ (0.60)
Diluted income (loss) per share
Income (loss) from continuing operations (in dollars per share)	$ 0.19	$ (0.30)	$ 0.27	$ (0.62)
Income from discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ 0.01	$ 0.02
Net income (loss) per share (in dollars per share)	$ 0.19	$ (0.30)	$ 0.28	$ (0.60)