Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 0	$ 747
Receivables (less allowance for doubtful accounts: March 31, 2016 - $24; December 31, 2015 - $24)	31,204	30,670
Inventory	68,383	58,701
Prepaid expenses	1,351	1,062
Total current assets	100,938	91,180
Property and equipment	233,002	229,914
Less accumulated depreciation and amortization	(149,585)	(146,360)
Property and equipment, net	83,417	83,554
Equity method investments (Note 2)	15,780	18,563
Other assets	972	1,013
Total assets	201,107	194,310
Current Liabilities
Current maturities of long-term debt	5,997	3,345
Accounts payable	16,740	20,940
Accounts payable to affiliate, net	2,302	2,291
Accrued expenses	7,335	10,400
Income taxes payable	4,797	685
Total current liabilities	37,171	37,661
Long-term debt, less current maturities	19,239	7,579
Revolving credit facility	12,208	22,536
Deferred credit	3,228	3,402
Accrued retirement health and life insurance benefits	4,085	4,136
Deferred income taxes	2,135	2,757
Other noncurrent liabilities	80	79
Total liabilities	$ 78,146	$ 78,150
Commitments and Contingencies (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 March 31, 2016 and December 31, 2015, and16,686,927 and 16,681,576 shares outstanding at March 31, 2016 and December 31, 2015, respectively	6,715	6,715
Additional paid-in capital	12,361	11,356
Retained earnings	120,242	114,558
Accumulated other comprehensive loss, net of tax	(517)	(500)
Treasury stock, at cost
Shares of 1,429,038 at March 31, 2016 and 1,434,389 at December 31, 2015	(15,844)	(15,973)
Total stockholders’ equity	122,961	116,160
Total liabilities and stockholders’ equity	$ 201,107	$ 194,310