Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Income Statement [Abstract]
Sales	$ 83,966		$ 80,709		$ 254,451		$ 253,134
Less: excise taxes	6,451		538		17,373		7,164
Net sales	77,515		80,171		237,078		245,970
Cost of sales	70,204	[1]	79,356	[1]	214,658	[1]	232,645	[1]
Gross profit	7,311		815		22,420		13,325
Selling, general and administrative expenses	4,966		6,760		15,204		17,405
Insurance recoveries (Note 6)	(1,293)		0		(1,223)		0
Other operating costs and losses on sale of assets	1		1		1		59
Income (loss) from operations	3,637		(5,946)		8,438		(4,139)
Interest expense, net	(199)		(269)		(615)		(829)
Equity method investment earnings (loss)	1,621		(91)		7,287		(962)
Income (loss) from continuing operations before income taxes	5,059		(6,306)		15,110		(5,930)
Provision (benefit) for income taxes	(1,169)		19		(1,002)		44
Net income (loss) from continuing operations	6,228		(6,325)		16,112		(5,974)
Discontinued operations, net of tax (Note 8)	0		0		0		1,406
Net income (loss)	6,228		(6,325)		16,112		(4,568)
Other comprehensive income (loss), net of tax	(123)		(111)		202		(401)
Comprehensive income (loss)	$ 6,105		$ (6,436)		$ 16,314		$ (4,969)
Basic and diluted earnings (loss) per share
Income from continuing operations (in usd per share)	$ 0.34		$ (0.37)		$ 0.89		$ (0.35)
Income from discontinued operations (in usd per share)	$ 0.00		$ 0.00		$ 0.00		$ 0.08
Net income (in usd per share)	$ 0.34		$ (0.37)		$ 0.89		$ (0.27)
Dividends and dividend equivalents per common share (in usd per share)	$ 0		$ 0		$ 0.05		$ 0.05

[1] Includes related party purchases of $10,079 and $702 for the quarters ended September 30, 2014 and 2013, respectively. Includes related party purchases of $26,220 and $5,494 for the year to date periods ended September 30, 2014 and 2013, respectively. See Note 2. Equity Method Investments.