Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 0	$ 0
Restricted cash	0	12
Receivables (less allowance for doubtful accounts: June 30, 2013 - $20; December 31, 2012 - $12)	31,157	35,325
Inventory	41,034	36,532
Prepaid expenses	1,814	697
Deferred income taxes	4,943	5,283
Refundable income taxes	235	242
Total current assets	79,183	78,091
Property and equipment	189,783	190,519
Less accumulated depreciation and amortization	(119,133)	(115,128)
Property and equipment, net	70,650	75,391
Equity method investments	6,424	7,301
Other noncurrent assets	2,263	2,388
Total assets	158,520	163,171
Current Liabilities
Current maturities of long-term debt	1,601	1,683
Accounts payable	18,653	18,860
Accounts payable to affiliate, net	0	4,008
Accrued expenses	6,716	5,220
Total current liabilities	26,970	29,771
Long-term debt, less current maturities	4,395	5,168
Revolving credit facility	24,663	25,893
Deferred credit	3,958	4,133
Accrued retirement health and life insurance benefits	4,913	5,096
Other noncurrent liabilities	987	1,000
Deferred income taxes	4,943	5,283
Total liabilities	70,829	76,344
Commitments and Contingencies – See Note 4
Capital stock
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 shares at June 30, 2013 and December 31, 2012, 17,851,535 and 17,934,233 shares outstanding at June 30, 2013 and December 31, 2012, respectively	6,715	6,715
Additional paid-in capital	8,637	7,894
Retained earnings	73,372	72,531
Accumulated other comprehensive loss	(523)	(233)
Treasury stock, at cost
264,430 and 181,732 shares at June 30, 2013 and December 31, 2012, respectively	(514)	(84)
Total stockholders’ equity	87,691	86,827
Total liabilities and stockholders’ equity	$ 158,520	$ 163,171