Note 6 - Goodwill and Other Intangible Assets (Details) - Other Intangible Assets - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Amortized Intangible Assets
Amortized Intangible Assets, Gross	$ 22,052	$ 23,088
Amortized Intangible Assets, Accumulated Amortization	19,382	19,283
Amortized Intangible Assets, Net	2,670	3,805
Indefinite-lived Intangible Assets
Indefinite-lived Intangible Assets, Gross	3,422	3,422
Indefinite-lived Intangible Assets, Net	3,422	3,422
Intangible Assets, Gross	25,474	26,510
Intangible Assets, Accumulated Amortization	19,382	19,283
Intangible Assets, Net	6,092	7,227
Trademarks and Trade Names [Member]
Indefinite-lived Intangible Assets
Indefinite-lived Intangible Assets, Gross	3,422	3,422
Indefinite-lived Intangible Assets, Net	3,422	3,422
Customer Relationships [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	9,316	10,352
Amortized Intangible Assets, Accumulated Amortization	7,290	7,412
Amortized Intangible Assets, Net	2,026	2,940
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	7,290	7,412
Patents [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	338	338
Amortized Intangible Assets, Accumulated Amortization	120	84
Amortized Intangible Assets, Net	218	254
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	120	84
Technology-Based Intangible Assets [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	11,228	11,228
Amortized Intangible Assets, Accumulated Amortization	10,910	10,832
Amortized Intangible Assets, Net	318	396
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	10,910	10,832
Trade Names [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	460	460
Amortized Intangible Assets, Accumulated Amortization	460	454
Amortized Intangible Assets, Net		6
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	460	454
Noncompete Agreements [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	710	710
Amortized Intangible Assets, Accumulated Amortization	602	501
Amortized Intangible Assets, Net	108	209
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	$ 602	$ 501