Note 6 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Nov. 22, 2011
Goodwill	$ 5,652	$ 3,034	$ 3,034	$ 3,034
Trademarks and Trade Names [Member]
Finite-Lived Intangible Asset, Useful Life	14 years
Noncompete Agreements [Member]
Finite-Lived Intangible Asset, Useful Life	8 years
Technology-Based Intangible Assets [Member]
Finite-Lived Intangible Asset, Useful Life	10 years
Customer Relationships [Member]
Finite-Lived Intangible Asset, Useful Life	8 years
Computer Software, Intangible Asset [Member]
Finite-Lived Intangible Asset, Useful Life	5 years