Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from (used for) operating activities:
Net income	$ 9,029	$ 12,395
Adjustments to reconcile net income to net cash from (used for) operating activities -
Depreciation and amortization	17,391	16,263
Loss on disposition of property and equipment	104	23
Stock-based compensation	1,178	1,741
Other long-term assets	(3,967)	(1,810)
Other long-term liabilities	(355)	1,640
	23,380	30,252
Changes in working capital:
Accounts receivable	(18,637)	(29,855)
Inventories	44,252	(10,933)
Prepaid expenses and other	(18)	1,433
Accounts payable	(5,462)	(2,195)
Change in outstanding checks	5,041	(3,476)
Accrued payroll and other accrued liabilities	29	(390)
	25,205	(45,416)
Net cash from (used for) operating activities	48,585	(15,164)
Cash flows from (used for) investing activities:
Capital expenditures	(9,590)	(20,290)
Proceeds from disposition of property and equipment	8	236
Net cash used for investing activities	(9,582)	(20,054)
Cash flows from (used for) financing activities:
Credit facility revolver borrowings	312,802	437,925
Credit facility revolver repayments	(344,632)	(397,315)
Principal payments under capital lease obligations	(1,407)	(130)
Term loan repayments	(6,562)	(6,562)
Industrial revenue bond repayments	(785)	(755)
Credit facility fees and expenses	(3)	(1,209)
Proceeds from exercise of stock options (including tax benefits) and employee stock purchases	458	348
Dividends paid	(657)	(655)
Net cash from (used for) financing activities	(40,786)	31,647
Cash and cash equivalents:
Net change	(1,783)	(3,571)
Beginning balance	7,782	7,403
Ending balance	5,999	3,832
Interest paid	4,055	5,622
Income taxes paid	$ 5,949	$ 6,170