Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Income Statement [Abstract]
Sales	$ 338,352		$ 334,070
Less: excise taxes	24,949		10,806
Net sales	313,403		323,264
Cost of sales	284,972	[1]	302,025	[1]
Gross profit	28,431		21,239
Selling, general and administrative expenses	20,101		26,202
Insurance recoveries (Note 17)	(8,290)		0
Other operating costs and losses on sale of assets	1		236
Operating income (loss)	16,619		(5,199)
Equity method investment earnings (loss) (Note 3)	10,137		(204)
Interest expense	(816)		(1,118)
Income (loss) from continuing operations before income taxes	25,940		(6,521)
Income tax expense (benefit) (Note 5)	2,265		(714)
Net income (loss) from continuing operations	23,675		(5,807)
Discontinued operations, net of tax (Note 11)	0		878
Net income (loss)	$ 23,675		$ (4,929)
Basic and diluted earnings (loss) per share
Income (loss) from continuing operations (in dollars per share)	$ 1.32		$ (0.34)
Income from discontinued operations (in dollars per share)	$ 0.00		$ 0.05
Net income (loss) (in dollars per share)	$ 1.32		$ (0.29)
Dividends per common share (in dollars per share)	$ 0.05		$ 0.05

[1] Includes related party purchases of $37,500 and $9,988 for the years ended December 31, 2014 and 2013, respectively.