Note 8 - Segment Information and Disaggregated Revenue (Details Textual) $ in Thousands	3 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Number of Reportable Segments	2
Revenue from Contract with Customer, Including Assessed Tax	$ 15,172	$ 11,406
Europe and Canada [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 1,467	$ 2,026