Note 6 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Amortized intangible assets, gross	$ 54,625	$ 55,335
Accumulated amortization	25,400	23,348
Amortized intangible assets, net	29,225	31,987
Indefinite-lived intangible assets, gross	3,422	3,422
Total other intangible assets, gross	58,047	58,757
Total other intangible assets, net	32,647	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	12,070	10,011
Amortized intangible assets, net	23,493	25,552
Patents [Member]
Amortized intangible assets, gross	338	338
Accumulated amortization	247	217
Amortized intangible assets, net	91	121
Technology-Based Intangible Assets [Member]
Amortized intangible assets, gross	16,066	16,066
Accumulated amortization	12,364	11,801
Amortized intangible assets, net	3,702	4,265
Trade Names [Member]
Amortized intangible assets, gross	2,658	2,658
Accumulated amortization	719	609
Amortized intangible assets, net	$ 1,939	2,049
Noncompete Agreements [Member]
Amortized intangible assets, gross		710
Accumulated amortization		710
Amortized intangible assets, net