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Note 16 - Employee Benefit Plans (Tables) | 12 Months Ended
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Jun. 30, 2024
Notes Tables |
Schedule of Fair Value of Plan Assets [Table Text Block] |
|  | June 30, 2024 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Cash and cash equivalents |  | $ | 2,792 |  |  | $ | 2,792 |  |  | $ | - |  |  | $ | - |
Common and preferred stocks |  |  | 53,111 |  |  |  | - |  |  |  | 53,111 |  |  |  | - |
Corporate bonds and other fixed income securities |  |  | 96,522 |  |  |  | - |  |  |  | 96,522 |  |  |  | - |
Other |  |  | 12,120 |  |  |  | - |  |  |  | 12,120 |  |  |  | - |
|  | $ | 164,545 |  |  | $ | 2,792 |  |  | $ | 161,753 |  |  |  | - |
|  | June 30, 2023 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Cash and cash equivalents |  | $ | 1,558 |  |  | $ | 1,558 |  |  | $ | - |  |  | $ | - |
Common and preferred stocks |  |  | 54,308 |  |  |  | - |  |  |  | 54,308 |  |  |  | - |
Corporate bonds and other fixed income securities |  |  | 97,215 |  |  |  | - |  |  |  | 97,215 |  |  |  | - |
Other |  |  | 11,283 |  |  |  | - |  |  |  | 11,283 |  |  |  | - |
|  | $ | 164,364 |  |  | $ | 1,558 |  |  | $ | 162,806 |  |  |  | - |
Schedule of Allocation of Plan Assets [Table Text Block] |
|  | U.S. Plans |  |  | Foreign Plans |
|  | Year Ended June 30, |  |  | Year Ended June 30, |
Asset Category |  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Equity securities |  | 35% |  |  | 35% |  |  | 0% |  |  | 0% |
Debt securities |  | 42% |  |  | 44% |  |  | 69% |  |  | 67% |
Global balanced securities |  | 11% |  |  | 12% |  |  | 1% |  |  | 3% |
Other |  | 11% |  |  | 9% |  |  | 30% |  |  | 30% |
Total |  | 99% |  |  | 100% |  |  | 100% |  |  | 100% |
Defined Benefit Plan, Assumptions [Table Text Block] |
Year Ended June 30 | 2024 | 2023 | 2022 |
Plan assumptions - obligations |  |  |  |  |  |  |
Discount rate | 1.85% - 5.60% | 1.48% - 5.60% | 1.4% - 5.0% |
Rate of compensation increase | 3.30% | 3.30% | 3.25% |
Plan assumption - cost |  |  |  |  |  |  |
Discount rate | 1.48% - 5.6% | 1.37% - 5.6% | 0.73% - 3.0% |
Expected return on assets | 4.55% - 6.50% | 2.80% - 6.65% | 2.05% - 6.8% |
Rate of compensation increase | 3.30% | 3.30% | 3.25% |
Multiemployer Plan [Table Text Block] |
|  |  |  |  | Pension Protection Act |  |  |  |  |  |  |  |  |  |  |  |  |  | Expiration
|  |  |  |  | Zone Status |  | Contributions |  |  | Date of
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Collective
|  | EIN/Plan |  |  |  | FIP/RP |  |  |  |  |  |  |  |  |  |  |  |  | Surcharge | Bargaining
Pension Fund |  | Number |  | 2024 | 2023 | Status |  | 2024 |  |  | 2023 |  |  | 2022 |  | Imposed? | Agreement
New England Teamsters and Trucking Industry Pension Fund |  | 04-6372430-001 |  | Red | Red | Yes/ Implemented |  | $816 |  |  | $695 |  |  | $579 |  | No | Mar-27
IAM National Pension Fund, National Pension Plan |  | 51-6031295-002 |  | Red | Red | Yes/Implemented |  | 586 |  |  | 569 |  |  | 520 |  | Yes | May-25
|  |  |  |  |  |  |  |  | $ | 1,402 |  |  | $ | 1,264 |  |  | $ | 1,099 |  |  |
Pension Plan [Member] |
Notes Tables |
Schedule of Net Benefit Costs [Table Text Block] |
|  | U.S. Plans |  |  | Foreign Plans |
|  | Year Ended June 30, |  |  | Year Ended June 30, |
|  | 2024 |  |  | 2023 |  |  | 2022 |  |  | 2024 |  |  | 2023 |  |  | 2022 |
Service Cost |  | $ | - |  |  | $ | - |  |  | $ | 5 |  |  | $ | 196 |  |  | $ | 176 |  |  | $ | 231 |
Interest Cost |  |  | 9,891 |  |  |  | 9,586 |  |  |  | 7,320 |  |  |  | 1,190 |  |  |  | 1,039 |  |  |  | 768 |
Expected return on plan assets |  |  | (11,113 | ) |  |  | (11,973 | ) |  |  | (13,038 | ) |  |  | (1,404 | ) |  |  | (943 | ) |  |  | (855 | )
Recognized net actuarial loss |  |  | 3,802 |  |  |  | 3,814 |  |  |  | 5,534 |  |  |  | (607 | ) |  |  | (57 | ) |  |  | 336 |
Amortization of prior service cost (benefit) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (3 | ) |  |  | (4 | ) |  |  | (4 | )
Net periodic benefit cost (benefit) |  | $ | 2,580 |  |  | $ | 1,427 |  |  | $ | (179 | ) |  | $ | (628 | ) |  | $ | 211 |  |  | $ | 476 |
Schedule of Net Funded Status [Table Text Block] |
|  | U.S. Plans |  |  | Foreign Plans |
|  | Year Ended June 30, |  |  | Year Ended June 30, |
|  | 2024 |  |  | 2023 |  |  | 2024 |  |  | 2023 |
Change in benefit obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Benefit obligation at beginning of year |  | $ | 184,682 |  |  | $ | 199,825 |  |  | $ | 25,454 |  |  | $ | 30,868 |
Service cost |  |  | - |  |  |  | - |  |  |  | 196 |  |  |  | 176 |
Interest cost |  |  | 9,891 |  |  |  | 9,586 |  |  |  | 1,190 |  |  |  | 1,039 |
Actuarial gain |  |  | 96 |  |  |  | (8,625 | ) |  |  | 555 |  |  |  | (4,052 | )
Benefits paid |  |  | (16,230 | ) |  |  | (16,104 | ) |  |  | (1,779 | ) |  |  | (1,391 | )
Foreign currency exchange rate & other changes |  |  | - |  |  |  | - |  |  |  | 1,378 |  |  |  | (1,186 | )
Projected benefit obligation at end of year |  | $ | 178,439 |  |  | $ | 184,682 |  |  | $ | 26,994 |  |  | $ | 25,454 |
Change in plan assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at beginning of year |  | $ | 142,114 |  |  | $ | 157,851 |  |  | $ | 22,250 |  |  | $ | 30,986 |
Actual return on plan assets |  |  | 6,447 |  |  |  | 167 |  |  |  | 1,317 |  |  |  | (4,855 | )
Employer contribution |  |  | 9,981 |  |  |  | 200 |  |  |  | 257 |  |  |  | 251 |
Benefits paid |  |  | (16,230 | ) |  |  | (16,104 | ) |  |  | (1,497 | ) |  |  | (1,391 | )
Foreign currency exchange rate & other changes |  |  | - |  |  |  | - |  |  |  | (94 | ) |  |  | (2,741 | )
Fair value of plan assets at end of year |  | $ | 142,312 |  |  | $ | 142,114 |  |  | $ | 22,233 |  |  | $ | 22,250 |
Funded Status |  | $ | (36,127 | ) |  | $ | (42,568 | ) |  | $ | (4,761 | ) |  | $ | (3,204 | )
Amounts recognized in the consolidated balance sheets consist of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prepaid benefit cost |  | $ | - |  |  | $ | - |  |  | $ | 2,570 |  |  | $ | 2,807 |
Current liabilities |  |  | (166 | ) |  |  | (148 | ) |  |  | (625 | ) |  |  | (277 | )
Non-current liabilities |  |  | (35,961 | ) |  |  | (42,420 | ) |  |  | (6,706 | ) |  |  | (5,734 | )
Net amount recognized |  | $ | (36,127 | ) |  | $ | (42,568 | ) |  | $ | (4,761 | ) |  | $ | (3,204 | )
Unrecognized net actuarial loss |  | $ | 121,045 |  |  | $ | 120,087 |  |  | $ | 5,273 |  |  | $ | 4,032 |
Unrecognized prior service cost |  |  | - |  |  |  | - |  |  |  | (26 | ) |  |  | (32 | )
Accumulated other comprehensive income, pre-tax |  | $ | 121,045 |  |  | $ | 120,087 |  |  | $ | 5,247 |  |  | $ | 4,000 |
Target [Member] |
Notes Tables |
Schedule of Allocation of Plan Assets [Table Text Block] |
|  | 2024 |
Asset Category – Target |  | U.S. |  |  | U.K. |
Equity securities |  | 33% |  |  | 0% |
Debt and market neutral securities |  | 45% |  |  | 67% |
Global balanced securities |  | 12% |  |  | 1% |
Other |  | 10% |  |  | 32% |
Total |  | 100% |  |  | 100% |

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