Note 3 - Equity Method Investments (Detail) - The Company’s Equity in Earnings (Loss) of Joint Ventures (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Dec. 31, 2011		Dec. 31, 2012		Jun. 30, 2011
Equity In Earnings in Joint Ventures	$ (551)		$ (301)		$ (1,540)
Illinois Corn Processings, LLC [Member]
Equity In Earnings in Joint Ventures	(620)	[1]	(327)	[1]	(1,570)	[1]
D.M. Ingredients GmbH [Member]
Equity In Earnings in Joint Ventures	$ 69		$ 26		$ 30

[1] The Company's ownership percentage of ICP was 50 percent through February 1, 2012, when the Company sold a 20 percent interest of its investment. From February 2, 2012 through December 31, 2012, the Company's ownership percentage in ICP was 30 percent.