Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010
OPERATING ACTIVITIES:
Net (loss) income	$ (2,990)	$ 455
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation	24,745	19,999
Bad debt recovery	(37)	(9)
Stock compensation-net of excess tax benefits	147	118
Provision for deferred income taxes	(1,951)	260
Reclassification of unrealized loss on marketable equity securities	223	60
Gain on sale or reclass of marketable equity securities	(726)	(315)
Loss (gain) on sale or disposal of equipment	31	(501)
Changes in operating assets and liabilities:
Accounts receivable	(2,101)	(9,008)
Prepaid expenses, inventories, and other assets	424	(3,443)
Income taxes refundable	2,065	(2,061)
Trade accounts payable	12,473	7,650
Accrued expenses and other liabilities	2,553	386
Net cash provided by operating activities	34,856	13,591
INVESTING ACTIVITIES:
Purchases of property and equipment	(35,168)	(19,885)
Proceeds from disposition of equipment	5,647	9,166
Change in restricted cash	510	(1,872)
Purchases of marketable equity securities, net of return of capital	(2,039)	(1,545)
Sales of marketable equity securities	966	622
Net cash used in investing activities	(30,084)	(13,514)
FINANCING ACTIVITIES:
Borrowings under line of credit	244,761	271,078
Repayments under line of credit	(244,761)	(271,078)
Borrowings of long-term debt	8,199	15,047
Repayments of long-term debt	(20,205)	(8,629)
Borrowings under margin account	1,440	0
Repayments under margin account	(1,411)	0
Repurchases of common stock	(5,751)	0
Exercise of stock options	15	4
Net cash (used in) provided by financing activities	(17,713)	6,422
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(12,941)	6,499
CASH AND CASH EQUIVALENTS-Beginning of period	13,774	9,870
CASH AND CASH EQUIVALENTS-End of period	833	16,369
Cash paid during the period for:
Interest	1,393	1,692
Income taxes	75	2,280
NONCASH INVESTING AND FINANCING ACTIVITIES-
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