Note 16 - Employee Benefit Plans - Plan Asset Assumptions (Details)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	5.00%
Rate of compensation increase	3.25%	3.25%	2.90%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets	6.70%
Rate of compensation increase	3.25%	2.90%	3.20%
Minimum [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.40%	0.73%	0.99%
Discount rate	0.73%	0.99%	0.31%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets	2.05%	1.40%	2.30%
Maximum [Member]
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	5.00%	3.00%	2.90%
Discount rate	3.00%	2.90%	3.70%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets	6.80%	6.90%	7.00%