CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 10,051	$ 13,057
Receivables, net of allowance for doubtful accounts of $289 and $436	27,493	25,317
Inventories	7,294	9,297
Income taxes receivable	1,027	498
Deferred income taxes, net	1,559	1,559
Prepaid expenses	2,612	1,801
Other	1,085	964
Total current assets	51,121	52,493
Investments	3,210	4,277
Property, plant and equipment	424,782	396,816
Accumulated depreciation	(247,979)	(242,886)
Property, plant and equipment, net	176,803	153,930
Other assets:
Goodwill	29,028	27,303
Intangible assets, net	5,034	2,314
Deferred costs and other	3,554	3,669
Total other assets	37,616	33,286
Total assets	268,750	243,986
Current liabilities:
Accounts payable	4,952	4,661
Extended term payable	14,008	6,920
Deferred revenue	4,832	6,251
Accrued expenses and other	9,645	10,175
Current maturities of long-term obligations	1,636	1,407
Total current liabilities	35,073	29,414
Long-term liabilities:
Debt obligations, net of current maturities	135,519	118,828
Accrued income taxes	142	154
Deferred revenue	1,045	1,131
Financial derivative instruments	2,764	2,469
Accrued employee benefits and deferred compensation	19,968	18,166
Deferred income taxes	30,281	30,627
Total long-term liabilities	189,719	171,375
Total liabilities	224,792	200,789
Commitments and contingencies
Shareholders' equity:
Shares issued and outstanding: 13,527,537 in 2012 and 13,396,176 in 2011	1,353	1,340
Additional paid-in capital	16,661	15,683
Retained earnings	30,424	30,309
Accumulated other comprehensive (loss)	(4,480)	(4,135)
Total shareholders' equity	43,958	43,197
Total liabilities and shareholders' equity	$ 268,750	$ 243,986