Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents	$ 0	$ 747
Receivables (less allowance for doubtful accounts: September 30, 2016 - $24; December 31, 2015 - $24)	37,174	30,670
Inventory	75,611	58,701
Prepaid expenses	779	1,062
Refundable income taxes	549	0
Total current assets	114,113	91,180
Property and equipment	239,986	229,914
Less accumulated depreciation and amortization	(152,357)	(146,360)
Property and equipment, net	87,629	83,554
Equity method investments (Note 2)	17,518	18,563
Other assets	897	1,013
Total assets	220,157	194,310
Current Liabilities
Current maturities of long-term debt	4,356	3,345
Accounts payable	17,713	20,940
Accounts payable to affiliate, net	2,484	2,291
Accrued expenses	7,673	10,400
Income taxes payable	592	685
Total current liabilities	32,818	37,661
Long-term debt, less current maturities	17,309	7,579
Revolving credit facility	23,801	22,536
Deferred credit	3,178	3,402
Accrued retirement, health and life insurance benefits	3,921	4,136
Deferred income taxes	1,541	2,757
Other noncurrent liabilities	(197)	79
Total liabilities	82,371	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 September 30, 2016 and December 31, 2015, and 16,656,953 and 16,681,576 shares outstanding at September 30, 2016 and December 31, 2015, respectively	6,715	6,715
Additional paid-in capital	12,938	11,356
Retained earnings	135,739	114,558
Accumulated other comprehensive loss, net of tax	(556)	(500)
Treasury stock, at cost
Shares of 1,459,012 at September 30, 2016 and 1,434,389 at December 31, 2015	(17,054)	(15,973)
Total stockholders’ equity	137,786	116,160
Total liabilities and stockholders’ equity	$ 220,157	$ 194,310