CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 13,057	$ 73
Receivables, net of allowance for doubtful accounts of $436 and $570	25,317	24,642
Inventories	9,297	5,205
Income taxes receivable	498	3,814
Deferred income taxes, net	1,559	2,008
Prepaid expenses	1,801	1,601
Other	964	1,030
Total current assets	52,493	38,373
Investments	4,277	4,512
Property, plant and equipment	396,816	379,433
Accumulated depreciation and amortization	(242,886)	(224,356)
Property, plant and equipment, net	153,930	155,077
Other assets:
Goodwill	27,303	27,303
Intangible assets, net	2,314	2,668
Deferred costs and other	3,669	2,255
Total other assets	33,286	32,226
Total assets	243,986	230,188
Current liabilities:
Extended term payable	6,920	8,254
Accounts payable	4,661	2,840
Accrued expenses and other	10,175	7,929
Financial derivative instruments	0	1,079
Deferred revenue	6,251	5,073
Current maturities of long-term obligations	1,407	4,892
Total current liabilities	29,414	30,067
Long-term liabilities:
Debt obligations, net of current maturities	118,828	114,067
Financial derivative instruments	2,469	0
Accrued income taxes	154	562
Deferred income taxes	30,627	26,868
Deferred revenue	1,131	1,397
Accrued employee benefits and deferred compensation	18,166	15,923
Total long-term liabilities	171,375	158,817
Total liabilities	200,789	188,884
Commitments and contingencies
Shareholders' equity:
Common stock, no par value, $.10 state value Shares authorized: 100,000,000 Shares issued and outstanding: 13,396,176 in 2011 and 13,298,626 in 2010	1,340	1,330
Additional paid-in capital	15,683	14,328
Retained earnings	30,309	29,189
Accumulated other comprehensive (loss)	(4,135)	(3,543)
Total shareholders' equity	43,197	41,304
Total liabilities and shareholders' equity	$ 243,986	$ 230,188