Note 14 - Business Segments (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)
Revenue from Contract with Customer, Including Assessed Tax	$ 11,138	$ 8,112	$ 32,231	$ 23,154
Number of Operating Segments	4		4
Intersegment Eliminations [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 232	$ 375