Note 6 - Derivative Instruments and Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block]

		Quarter Ended					Year to Date Ended
	Classified	June 30, 2012		June 30, 2011			June 30, 2012			June 30, 2011
Commodity derivatives	Cost of sales	$	361	$	(2,450	)	$	(466	)	$	2,696

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]

	Amount of Gains (Losses) Recognized in OCI on Derivatives
	Quarter Ended				Year to Date Ended
Derivatives in Cash Flow Hedging Relationship	June 30, 2012		June 30, 2011		June 30, 2012			June 30, 2011
Commodity derivatives		-		n/a	$	(286	)		n/a

	Amount of Gains (Losses) Reclassified from AOCI into Earnings
	Quarter Ended				Year to Date Ended
Location of Losses Reclassified from AOCI into Income	June 30, 2012		June 30, 2011		June 30, 2012			June 30, 2011
Cost of sales		-		n/a	$	(413	)		n/a

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

					Fair Value Measurements
	Classified	Total			Level 1			Level 2		Level 3
June 30, 2012
Liabilities
Ethanol Derivatives	Derivative Liabilities	$	(1,764	)	$	(1,764	)	$	-	$	-
December 31, 2011
Assets
Corn Derivatives	Derivative Assets	$	1,091		$	1,091		$	-	$	-
Ethanol Derivatives	Derivative Assets	$	213		$	213		$	-	$	-
Liabilities
Corn Derivatives	Derivative Liabilities	$	(974	)	$	( 974	)	$	-	$	-
Ethanol Derivatives	Derivative Liabilities	$	(2,491	)	$	(2,491	)	$	-	$	-