Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current Assets
Cash and cash equivalents		$ 383
Restricted cash	12	7,605
Receivables (less allowance for doubtful accounts: December 31, 2012 - $12; December 31, 2011 - $63)	35,325	27,804
Inventory	36,532	31,082
Prepaid expenses	697	958
Derivative assets		1,304
Deferred income taxes	5,283	6,056
Refundable income taxes	242	566
Assets held for sale	2,300	2,300
Total current assets	78,091	78,058
Property and equipment, net of accumulated depreciation and amortization	75,391	77,079
Equity method investments	7,301	12,147
Other assets	2,388	1,873
Total assets	163,171	169,157
Current Liabilities
Current maturities of long-term debt	1,683	1,670
Revolving credit facility	25,893	21,142
Accounts payable	18,860	22,704
Accounts payable to affiliate, net	4,008	6,167
Accrued expenses	5,220	4,023
Derivative liabilities		3,465
Total current liabilities	29,771	59,171
Long-term debt, less current maturities	5,168	6,852
Revolving credit facility	25,893
Deferred credit	4,133	4,195
Accrued retirement health and life insurance benefits	5,096	6,309
Other non current liabilities	1,000	2,144
Deferred income taxes	5,283	6,056
Total liabilities	76,344	84,727
Preferred, 5% non-cumulative; $10 par value; authorized 1,000 shares; issued and outstanding 437 shares	4	4
Common stock
No par value; authorized 40,000,000 shares; issued 18,115,965 and 19,530,344 shares at December 31, 2012 and 2011, respectively; 17,934,233 and 18,115,965 shares outstanding at December 31, 2012 and 2011, respectively	6,715	6,715
Additional paid-in capital	7,894	6,925
Retained earnings	72,531	78,953
Accumulated other comprehensive income (loss)	(233)	(1,035)
Treasury stock, at cost
Common; 181,732 and 1,414,379 shares at December 31, 2012 and 2011, respectively	(84)	(7,132)
Total stockholders’ equity	86,827	84,430
Total liabilities and stockholders’ equity	$ 163,171	$ 169,157