Note 9 - Restructuring Costs And Loss On Impairment Of Assets (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Jun. 30, 2011
Asset Impairment Charges	$ 1,301
Gain (Loss) on Disposition of Assets	(117)	832	(322)
Wheatex Equipment [Member]
Gain (Loss) on Disposition of Assets		889
Reduction To Fair Value [Member]
Asset Impairment Charges	706
Second Review Of Wheatex Equipment [Member]
Asset Impairment Charges	$ 595