CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Activities:
Net income	$ 14,617	$ 18,122	$ 13,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,627	7,271	5,486
Loss (gain) on sale of property, plant and equipment	(12)	(20)	17
Deferred income tax	12,635	10,072	730
Share-based compensation expense, net	1,314	1,408	1,676
Changes in assets and liabilities:
Accounts receivable, net	10,267	(5,281)	(12,245)
Inventory, net	(10,661)	(15,378)	(28,388)
Accounts payable	(20,130)	(5)	11,661
Accrued employment costs	(2,876)	2,057	4,310
Income taxes	3,208	(4,672)	4,175
Other, net	(180)	(2,887)	243
Net cash provided by operating activities	20,809	10,687	907
Investing Activities:
Capital expenditures, net of amount included in current liabilities	(34,229)	(16,790)	(6,903)
Business acquisition, net of convertible notes assumed		(91,298)
Proceeds from sale of property, plant and equipment	14	20	18
Net cash used in investing activities	(34,215)	(108,068)	(6,885)
Financing Activities:
Borrowings under revolving credit facility	119,092	65,925
Payments on revolving credit facility	(87,000)	(31,275)
Payment on term loan facility	(20,000)
Borrowings under term loan facility		40,000
Debt repayments		(10,823)	(2,223)
Proceeds from the issuance of Common Stock	1,608	627	603
Payment of deferred financing costs	(348)	(1,371)
Tax benefit from share-based payment arrangements	335	172	143
Purchase of Treasury Stock	(234)		(260)
State grant funding the purchase of new equipment			500
Net cash provided by (used in) financing activities	13,453	63,255	(1,237)
Net increase (decrease) in cash	47	(34,126)	(7,215)
Cash at beginning of period	274	34,400	41,615
Cash at end of period	321	274	34,400
Supplemental Non-Cash Investing and Financing Activities:
Capital expenditures included in current liabilities	828	7,690	578
Convertible notes issued as acquisition consideration		20,000
Supplemental Disclosure of Cash Flow Information:
Interest paid, net of amount capitalized	2,340	1,334	446
Income taxes paid (refunded), net	$ (9,805)	$ 4,782	$ 1,774