Note 7 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Jun. 30, 2018
Amortized intangible assets, gross	$ 54,625	$ 54,625
Accumulated amortization	23,329	22,638
Amortized intangible assets, net	31,296	31,987
Indefinite-lived intangible assets, gross	3,422	3,422
Total other intangible assets, gross	58,047	58,047
Total other intangible assets, net	34,718	35,409
Trademarks and Trade Names [Member]
Indefinite-lived intangible assets, gross	3,422	3,422
Customer Relationships [Member]
Amortized intangible assets, gross	35,563	35,563
Accumulated amortization	10,525	10,011
Amortized intangible assets, net	25,038	25,552
Patents [Member]
Amortized intangible assets, gross	338	338
Accumulated amortization	226	217
Amortized intangible assets, net	112	121
Technology-Based Intangible Assets [Member]
Amortized intangible assets, gross	16,066	16,066
Accumulated amortization	11,941	11,801
Amortized intangible assets, net	4,125	4,265
Trade Names [Member]
Amortized intangible assets, gross	2,658	2,658
Accumulated amortization	637	609
Amortized intangible assets, net	$ 2,021	$ 2,049