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Note 5 - Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2013

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

		Quarter Ended
	Classified	March 31, 2013		March 31, 2012
Commodity derivatives	Cost of sales	$	63	$	(827	)

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

	Amount of Gains (Losses) Recognized in Other Comprehensive Income on Derivatives						Amount of Gains (Losses) Reclassified from Accumulated Other Comprehensive Income into Earnings
Derivatives in Cash Flow Hedging Relationship	Quarter Ended March 31, 2013		Quarter Ended March 31, 2012			Location of Losses Reclassified from AOCI into Income	Quarter Ended March 31, 2013		Quarter Ended March 31, 2012
Commodity derivatives		-	$	(286	)	Cost of sales		-	$	(413	)

- Definition

Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges.

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