Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 5,641	$ 2,857
Receivables (less allowance for doubtful accounts: December 31, 2014 - $12; December 31, 2013 - $18)	32,672	27,821
Inventory	34,441	34,917
Prepaid expenses	1,179	848
Deferred income taxes	7,924	4,977
Refundable income taxes	388	466
Total current assets	82,245	71,886
Property and equipment, net of accumulated depreciation and amortization	63,881	70,244
Equity method investments	12,373	7,123
Other assets	2,100	2,076
Total assets	160,599	151,329
Current Liabilities
Current maturities of long-term debt	2,613	1,557
Accounts payable	16,076	23,107
Accounts payable to affiliate, net	3,333	1,204
Accrued expenses	8,010	8,282
Other current liabilities	716	0
Total current liabilities	30,748	34,150
Long-term debt, less current maturities	7,670	3,611
Revolving credit facility	0	18,000
Deferred credits	4,099	3,925
Accrued retirement health and life insurance benefits	4,420	4,423
Other non current liabilities	0	640
Deferred income taxes	9,297	4,977
Total liabilities	56,234	69,726
Commitments and Contingencies – See Notes 4 and 7
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 December 31, 2014 and 2013; 17,674,559 and 17,750,421 shares outstanding at December 31, 2014 and 2013, respectively	6,715	6,715
Additional paid-in capital	9,904	8,728
Retained earnings	89,454	66,686
Accumulated other comprehensive loss	(732)	(4)
Treasury stock, at cost 441,406 and 365,544 shares at December 31, 2014 and 2013, respectively	(980)	(526)
Total stockholders’ equity	104,365	81,603
Total liabilities and stockholders’ equity	$ 160,599	$ 151,329