Note 4 - Property and Equipment, Net - Property and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Jun. 30, 2014
Property, plant and equipment, gross	$ 7,793	$ 7,544
Less: Accumulated depreciation and amortization	(6,310)	(6,305)
Total	1,483	1,239
Land and Building [Member]
Property, plant and equipment, gross	1,250	1,250
Leasehold Improvements [Member]
Property, plant and equipment, gross	1,139	1,135
Machinery and Equipment [Member]
Property, plant and equipment, gross	5,341	5,096
Transportation Equipment [Member]
Property, plant and equipment, gross	$ 63	$ 63