CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 20,724	$ 13,057
Receivables, net of allowance for doubtful accounts of $169 and $436	20,554	25,317
Inventories	5,460	9,297
Income taxes receivable	0	498
Deferred income taxes, net	1,559	1,559
Prepaid expenses	2,382	1,801
Other	597	964
Total current assets	51,276	52,493
Investments	3,199	4,277
Property, plant and equipment	409,879	396,816
Accumulated depreciation	(235,184)	(242,886)
Property, plant and equipment, net	174,695	153,930
Other assets:
Goodwill	29,034	27,303
Intangible assets, net	5,476	2,314
Deferred costs and other	3,784	3,669
Total other assets	38,294	33,286
Total assets	267,464	243,986
Current liabilities:
Accounts payable	6,481	4,661
Extended term payable	8,615	6,920
Accrued income taxes	1,072	0
Deferred revenue	5,778	6,251
Accrued expenses and other	6,868	10,175
Current maturities of long-term obligations	1,621	1,407
Total current liabilities	30,435	29,414
Long-term liabilities:
Debt obligations, net of current maturities	140,272	118,828
Accrued income taxes	154	154
Deferred revenue	1,125	1,131
Financial derivative instruments	2,516	2,469
Accrued employee benefits and deferred compensation	18,409	18,166
Deferred income taxes	30,660	30,627
Total long-term liabilities	193,136	171,375
Total liabilities	223,571	200,789
Commitments and contingencies
Shareholders' equity:
Common stock, no par value, $.10 stated value Shares authorized: 100,000,000 Shares issued and outstanding: 13,488,490 in 2012 and 13,396,176 in 2011	1,349	1,340
Additional paid-in capital	15,875	15,683
Retained earnings	30,725	30,309
Accumulated other comprehensive (loss)	(4,056)	(4,135)
Total shareholders' equity	43,893	43,197
Total liabilities and shareholders' equity	$ 267,464	$ 243,986