Note 8 - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Jun. 30, 2015
Land [Member]
Cost	$ 1,314	$ 1,320
Net	1,314	1,320
Building and Building Improvements [Member]
Cost	45,486	45,434
Net	15,891	20,224
Accumulated Depreciation	(29,595)	(25,210)
Machinery and Equipment [Member]
Cost	126,882	132,788
Net	23,805	22,869
Accumulated Depreciation	(103,077)	(109,919)
Cost	173,682	179,542
Net	41,010	44,413
Accumulated Depreciation	$ (132,672)	$ (135,129)