Note 7 - Goodwill and Other Intangible Assets (Details) - Other Intangible Assets - USD ($) $ in Thousands	Sep. 30, 2015	Jun. 30, 2015
Amortized Intangible Assets
Amortized Intangible Assets, Gross	$ 22,052	$ 22,052
Amortized Intangible Assets, Accumulated Amortization	19,508	19,382
Amortized Intangible Assets, Net	2,544	2,670
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	25,474
Intangible Assets, Accumulated Amortization	19,508	19,382
Intangible Assets, Net	5,966	6,092
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	9,316
Amortized Intangible Assets, Accumulated Amortization	7,363	7,290
Amortized Intangible Assets, Net	1,953	2,026
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	7,363	7,290
Patents [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	338	338
Amortized Intangible Assets, Accumulated Amortization	128	120
Amortized Intangible Assets, Net	210	218
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	128	120
Technology-Based Intangible Assets [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	11,228	11,228
Amortized Intangible Assets, Accumulated Amortization	10,930	10,910
Amortized Intangible Assets, Net	298	318
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	10,930	10,910
Trade Names [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	460	460
Amortized Intangible Assets, Accumulated Amortization	460	460
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	460	460
Noncompete Agreements [Member]
Amortized Intangible Assets
Amortized Intangible Assets, Gross	710	710
Amortized Intangible Assets, Accumulated Amortization	627	602
Amortized Intangible Assets, Net	83	108
Indefinite-lived Intangible Assets
Intangible Assets, Accumulated Amortization	$ 627	$ 602