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Note 2 - Acquisitions (Details Textual) $ in Thousands |  |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 05, 2025 USD ($) | Nov. 18, 2024 USD ($) | Nov. 13, 2024 USD ($) | Oct. 28, 2024 USD ($) shares | Sep. 30, 2024 USD ($) | Feb. 19, 2024 USD ($) | Jul. 01, 2023 USD ($) | Mar. 31, 2025 USD ($) | Dec. 31, 2024 | Mar. 31, 2024 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2024 USD ($) | Jun. 30, 2024 USD ($) | Jul. 31, 2023 USD ($)
Business Combination, Number of Businesses Acquired |  |  |  |  |  |  |  | 1 | 3 |  |  |  |  |
Goodwill |  |  |  |  |  |  |  | $ 610,740 |  |  | $ 610,740 |  | $ 281,283 |
Business Combination, Acquisition-Related Cost, Expense |  |  |  |  |  |  |  | 2,152 |  | $ 537 | 20,392 | $ 2,233 |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  | 477,381 | $ 47,696 |  |
McStarlite [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Voting Equity Interest Acquired, Percentage | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred | $ 56,700 |  |  |  |  |  |  | 56,688 |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill | 26,400 |  |  |  |  |  |  | 26,400 |  |  | 26,400 |  |  |
Goodwill | 17,700 |  |  |  |  |  |  | 17,695 |  |  | 17,695 |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  |  |  | 57,271 |  |  |  |  |  |
McStarlite [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Indefinite-Lived | 4,800 |  |  |  |  |  |  |  |  |  |  |  |  |
McStarlite [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived | $ 21,600 |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) | 12 years |  |  |  |  |  |  |  |  |  |  |  |  |
Amran Instrument Transformers [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Voting Equity Interest Acquired, Percentage |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  | $ 179,700 |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  | $ 153,700 |  |  |  |  |  |  |  |  |  |
Amran Instrument Transformers [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  |  |  | 152,299 |  |  |  |  |  |  |  |  |  |
Amran Instrument Transformers [Member] | Treasury Stock, Common [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  |  |  | 26 |  |  |  |  |  |  |  |  |  |
Narayan Powertech Pvt. Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Voting Equity Interest Acquired, Percentage |  |  |  | 90.10% |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill |  |  |  | $ 136,000 |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  | 300,700 |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Gross |  |  |  | $ 261,900 |  |  |  |  |  |  |  |  |  |
Business Combination, Period for Right to Transfer Remaining Interest (Year) |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |
Business Combination, Period for Right to Acquire Remaining Interest (Year) |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |
Pro Forma Information, Interest Rate Assumption |  |  |  | 7.70% |  |  |  |  |  |  |  |  |  |
Pro Forma Information, Tax Rate Assumed |  |  |  | 22.60% |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition-Related Cost, Expense |  |  |  |  |  |  |  | 1,200 |  |  | 14,000 |  |  |
Business Combination, Acquiree's Revenue since Acquisition Date, Actual |  |  |  |  |  |  |  | 52,700 |  |  |  |  |  |
Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual |  |  |  |  |  |  |  | 10,800 |  |  |  |  |  |
Narayan Powertech Pvt. Ltd. [Member] | Mold-Tech Singapore [Member] | Scenario, Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Voting Equity Interest Acquired, Percentage |  |  |  | 9.90% |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable |  |  |  | $ 26,700 |  |  |  |  |  |  |  |  |  |
Narayan Powertech Pvt. Ltd. [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Indefinite-Lived |  |  |  | 28,700 |  |  |  |  |  |  |  |  |  |
Narayan Powertech Pvt. Ltd. [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived |  |  |  | $ 107,300 |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  | 12 years |  |  |  |  |  |  |  |  |  |
Nascent Technology Manufacturing [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  | $ 7,600 |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ 6,500 |  |  |  |  |  |  |  |  |  |  |  |
Custom Biogenic Systems [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  | $ 4,700 |  |  |  |  |  |  |  |  |  |  |
Sanyu Switch Co., Ltd [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  |  | $ 20,900 |  |  |  |  | 20,931 |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill |  |  |  |  |  |  |  | 2,900 |  |  | 2,900 |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  | 12 years |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Indefinite-Lived |  |  |  |  |  | $ 2,900 |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | 9,100 |  | 9,100 |  |  | 9,100 |  |  |
Payments to Acquire Businesses, Gross |  |  |  |  |  |  |  |  |  |  | 22,178 |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  | $ 22,200 |  |  |  |
Business Combination, Consideration Payable |  |  |  |  |  | 2,500 |  | $ 2,464 |  |  | $ 2,464 |  |  |
Sanyu Switch Co., Ltd [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Indefinite-Lived |  |  |  |  |  | 700 |  |  |  |  |  |  |  |
Sanyu Switch Co., Ltd [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived |  |  |  |  |  | $ 2,200 |  |  |  |  |  |  |  |
Minntronixs [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred |  |  |  |  | $ 29,229 |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill |  |  |  |  | 10,700 |  |  |  |  |  |  |  |  | $ 10,700
Goodwill |  |  |  |  | 13,889 |  |  |  |  |  |  |  |  | 13,900
Payments to Acquire Businesses, Gross |  |  |  |  | $ 33,890 |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  | $ 29,200 |  |  |  |  |  |  |
Minntronixs [Member] | Trademarks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Indefinite-Lived |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,200
Minntronixs [Member] | Customer-Related Intangible Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,500
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  |  |  |  |  |  |  |  |  | 15 years

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