Note 9 - Segment Information and Disaggregated Revenue (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Number of Reportable Segments			2
Revenue from Contract with Customer, Including Assessed Tax	$ 14,594	$ 14,257	$ 27,345	$ 29,429
Europe and Canada [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 2,333	$ 1,750	$ 4,553	$ 3,217