Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Revenues	$ 58,634	$ 56,447
Cost of sales, excluding lower of cost or market adjustment	44,664	33,905
Lower of cost or market adjustment	14,700	0
Gross profit (loss)	(730)	22,542
Operating expenses:
Selling and marketing	3,032	2,748
General and administrative	4,723	4,914
Total operating expenses	7,755	7,662
Operating income (loss)	(8,485)	14,880
Other income (expense):
Interest expense	(933)	(693)
Interest income	0	9
Total other income (expense)	(933)	(684)
Income (loss) before income taxes	(9,418)	14,196
Income tax (benefit) expense	(3,576)	1,395
Net income (loss)	$ (5,842)	$ 12,801
Net income (loss) per common share - Basic	$ (0.24)	$ 0.54
Net income (loss) per common share - Diluted	$ (0.24)	$ 0.49
Weighted average number of shares outstanding - Basic	24,826,101	23,906,706
Weighted average number of shares outstanding - Diluted	24,826,101	26,353,960