Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 1,554	$ 747
Receivables (less allowance for doubtful accounts: June 30, 2016 - $24; December 31, 2015 - $24)	33,998	30,670
Inventory	71,595	58,701
Prepaid expenses	792	1,062
Total current assets	107,939	91,180
Property and equipment	238,150	229,914
Less accumulated depreciation and amortization	(152,180)	(146,360)
Property and equipment, net	85,970	83,554
Equity method investments (Note 2)	16,856	18,563
Other assets	934	1,013
Total assets	211,699	194,310
Current Liabilities
Current maturities of long-term debt	4,352	3,345
Accounts payable	20,982	20,940
Accounts payable to affiliate, net	2,487	2,291
Accrued expenses	7,101	10,400
Income taxes payable	742	685
Total current liabilities	35,664	37,661
Long-term debt, less current maturities	18,399	7,579
Revolving credit facility	18,618	22,536
Deferred credit	3,054	3,402
Accrued retirement, health and life insurance benefits	4,045	4,136
Deferred income taxes	2,008	2,757
Other noncurrent liabilities	81	79
Total liabilities	81,869	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 June 30, 2016 and December 31, 2015, and 16,697,823 and 16,681,576 shares outstanding at June 30, 2016 and December 31, 2015, respectively	6,715	6,715
Additional paid-in capital	12,634	11,356
Retained earnings	126,550	114,558
Accumulated other comprehensive loss, net of tax	(538)	(500)
Treasury stock, at cost
Shares of 1,418,142 at June 30, 2016 and 1,434,389 at December 31, 2015	(15,535)	(15,973)
Total stockholders’ equity	129,830	116,160
Total liabilities and stockholders’ equity	$ 211,699	$ 194,310