v3.26.1
Note 16 - Employee Benefit Plans - Plan Asset Assumptions (Details)
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 5.80%    
Rate of compensation increase 3.00% 3.25% 3.30%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets 6.35%    
Rate of compensation increase 3.00% 3.25% 3.30%
Minimum [Member]      
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 3.42% 2.40% 1.85%
Discount rate 2.30% 1.85% 1.48%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets 5.40% 5.40% 4.55%
Maximum [Member]      
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 5.85% 5.60% 5.60%
Discount rate 5.60% 5.60% 5.60%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets 6.35% 6.35% 6.50%