CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities
Net income (loss)	$ 7,313	$ (7,592)
Adjustments to reconcile net income (loss) to net cash used in operating activities
Depreciation expense	8,054	7,389
Amortization of intangible assets	1,690	1,672
Amortization of debt issuance costs	353	465
Deferred income taxes	(4,030)	(3,723)
Non-cash stock compensation expense	1,848	573
Impairment of assets held for sale	96	0
Gain on sale of property, equipment and real estate	(1,076)	(270)
Bad debt expense	417	1,316
Change in assets and liabilities
Accounts receivable	(19,756)	(35,401)
Inventories, net	(23,445)	(20,598)
Accounts payable	26,951	14,735
Other assets and liabilities	6,396	6,904
Net cash provided by (used in) operating activities	4,811	(34,530)
Cash flows from investing activities
Purchases of property and equipment	(20,795)	(2,574)
Proceeds from sale of property, equipment and real estate	3,493	3,070
Change in restricted assets	2	3,223
Purchase of business	0	(2,373)
Net cash (used in) provided by investing activities	(17,300)	1,346
Cash flows from financing activities
Proceeds from revolving line of credit	1,046,220	961,160
Repayments of proceeds from revolving line of credit	(1,023,476)	(973,305)
Proceeds from issuance of common stock, net of offering costs	0	55,821
Other financing activities	(3,149)	(2,657)
Net cash provided by financing activities	19,595	41,019
Net increase in cash and cash equivalents	7,106	7,835
Cash and cash equivalents
Beginning of period	1,138	2,691
End of period	$ 8,244	$ 10,526