Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010
OPERATING ACTIVITIES:
Net (loss) income	$ (1,286)	$ 946
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation	16,674	13,042
Bad debt expense	84	1
Stock compensation-net of excess tax benefits	135	118
Provision for deferred income taxes	(757)	(1,540)
Reclassification of unrealized loss on marketable equity securities	193	60
Gain on sale or reclass of marketable equity securities	(759)	(316)
Loss (gain) on sale or disposal of equipment	27	(29)
Changes in operating assets and liabilities:
Accounts receivable	(7,550)	(7,751)
Prepaid expenses, inventories, and other assets	2,358	(131)
Income taxes refundable	2,050	552
Trade accounts payable	4,631	2,576
Accrued expenses and other liabilities	2,065	147
Net cash provided by operating activities	17,865	7,675
INVESTING ACTIVITIES:
Purchases of property and equipment	(16,138)	(19,357)
Proceeds from disposition of equipment	1,517	7,035
Change in restricted cash	(647)	(232)
Purchases of marketable equity securities, net of return of capital	(524)	(1,557)
Sales of marketable equity securities	966	622
Net cash used in investing activities	(14,826)	(13,489)
FINANCING ACTIVITIES:
Borrowings under line of credit	188,135	186,606
Repayments under line of credit	(188,135)	(186,606)
Borrowings of long-term debt	70	15,047
Repayments of long-term debt	(6,808)	(5,361)
Repurchases of common stock	(5,301)	0
Exercise of stock options	15	4
Net cash (used in) provided by financing activities	(12,024)	9,690
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(8,985)	3,876
CASH AND CASH EQUIVALENTS-Beginning of period	13,774	9,870
CASH AND CASH EQUIVALENTS-End of period	4,789	13,746
Cash paid during the period for:
Interest	996	1,058
Income taxes	53	1,725
NONCASH INVESTING AND FINANCING ACTIVITIES-
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