Note 6 - Property, Plant, and Equipment (Details) - Components of property, plant, and equipment (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Note 6 - Property, Plant, and Equipment (Details) - Components of property, plant, and equipment [Line Items]
Property, Plant and Equipment, Gross	$ 114,506	$ 116,061
Less accumulated depreciation	(73,664)	(68,890)
	40,842	47,171
Land and Land Improvements [Member]
Note 6 - Property, Plant, and Equipment (Details) - Components of property, plant, and equipment [Line Items]
Property, Plant and Equipment, Gross	4,559	5,167
Construction in Progress [Member]
Note 6 - Property, Plant, and Equipment (Details) - Components of property, plant, and equipment [Line Items]
Property, Plant and Equipment, Gross	1,875	1,769
Buildings, Furniture and Fixtures [Member]
Note 6 - Property, Plant, and Equipment (Details) - Components of property, plant, and equipment [Line Items]
Property, Plant and Equipment, Gross	31,647	35,706
Machinery and Equipment [Member]
Note 6 - Property, Plant, and Equipment (Details) - Components of property, plant, and equipment [Line Items]
Property, Plant and Equipment, Gross	$ 76,425	$ 73,419