Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 7,113	$ 1,569
Receivables (less allowance for doubtful accounts: September 30, 2017 - $24; December 31, 2016 - $24)	37,451	26,085
Inventory	89,652	78,858
Prepaid expenses	2,508	1,684
Refundable income taxes	233	2,705
Total current assets	136,957	110,901
Property and equipment	255,974	246,219
Less accumulated depreciation and amortization	(161,540)	(153,428)
Property and equipment, net	94,434	92,791
Equity method investments	0	18,934
Other assets	2,626	2,710
Total assets	234,017	225,336
Current Liabilities
Current maturities of long-term debt	368	4,359
Accounts payable	20,710	20,342
Accounts payable to affiliate, net	0	3,349
Accrued expenses	9,715	8,945
Total current liabilities	30,793	36,995
Long-term debt, less current maturities	21,496	16,218
Revolving credit facility	12,296	15,424
Deferred credits	2,361	2,978
Accrued retirement, health and life insurance benefits	3,381	3,604
Deferred income taxes	3,788	3,432
Other noncurrent liabilities	465	393
Total liabilities	74,580	79,044
Commitments and Contingencies
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, 2017 and December 31, 2016, and 16,723,696 and 16,658,765 shares outstanding at September 30, 2017 and December 31, 2016, respectively	6,715	6,715
Additional paid-in capital	14,961	14,279
Retained earnings	155,175	142,652
Accumulated other comprehensive loss, net of tax	(493)	(373)
Treasury stock, at cost
Shares of 1,392,269 at September 30, 2017 and 1,457,200 at December 31, 2016	(16,925)	(16,985)
Total stockholders’ equity	159,437	146,292
Total liabilities and stockholders’ equity	$ 234,017	$ 225,336