Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from (used for) operating activities:
Net income	$ 7,689	$ 10,756
Adjustments to reconcile net income to net cash from (used for) operating activities -
Depreciation and amortization	11,710	10,753
Loss on disposition of property and equipment	104	174
Stock-based compensation	971	1,436
Insurance recovery receivable	(1,787)
Other long-term assets	(2,611)	(2,032)
Other long-term liabilities	(816)	1,255
	15,260	22,342
Changes in working capital:
Accounts receivable	(28,481)	(36,274)
Inventories	41,236	(34,510)
Prepaid expenses and other	2,682	3,602
Accounts payable	979	8,628
Change in outstanding checks	(92)	3,629
Accrued payroll and other accrued liabilities	2,555	782
	18,879	(54,143)
Net cash from (used for) operating activities	34,139	(31,801)
Cash flows from (used for) investing activities:
Capital expenditures	(3,779)	(15,683)
Proceeds from disposition of property and equipment	8	2
Net cash used for investing activities	(3,771)	(15,681)
Cash flows from (used for) financing activities:
Credit facility revolver borrowings	207,012	303,470
Credit facility revolver repayments	(234,567)	(253,960)
Principal payments under capital lease obligations	(1,407)	(90)
Term loan repayments	(4,375)	(4,375)
Industrial revenue bond repayments	(785)	(755)
Credit facility fees and expenses	(3)	(1,203)
Proceeds from exercise of stock options (including tax benefits) and employee stock purchases	211	244
Dividends paid	(438)	(436)
Net cash from (used for) financing activities	(34,352)	42,895
Cash and cash equivalents:
Net change	(3,984)	(4,587)
Beginning balance	7,782	7,403
Ending balance	3,798	2,816
Interest paid	2,775	3,816
Income taxes paid	$ 2,223	$ 3,344