Note 7 - Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019
Amortized intangible assets, gross	$ 54,625	$ 54,625
Accumulated amortization	26,075	25,400
Amortized intangible assets, net	28,550	29,225
Indefinite-lived intangible assets, gross	3,422	3,422
Total other intangible assets, gross	58,047	58,047
Total other intangible assets, net	31,972	32,647
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	12,585	12,070
Amortized intangible assets, net	22,978	23,493
Patents [Member]
Amortized intangible assets, gross	338	338
Accumulated amortization	254	247
Amortized intangible assets, net	84	91
Technology-Based Intangible Assets [Member]
Amortized intangible assets, gross	16,066	16,066
Accumulated amortization	12,489	12,364
Amortized intangible assets, net	3,577	3,702
Trade Names [Member]
Amortized intangible assets, gross	2,658	2,658
Accumulated amortization	747	719
Amortized intangible assets, net	$ 1,911	$ 1,939