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v3.20.2

Note 2 - Acquisitions (Details Textual) - USD ($) $ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 10 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Sep. 30, 2018 | Aug. 31, 2019 | Aug. 31, 2018 | Jun. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017 | Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Sep. 30, 2018 | Jun. 30, 2018
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  |  |  |  |  |  |  |  |  | $ 622 |  | $ 127,924 |  | $ 10,397
Goodwill, Ending Balance |  | $ 273,843 |  |  |  | $ 273,843 |  |  | $ 271,221 | $ 273,843 | $ 271,221 |  | 273,843 |  | $ 204,091
Other Intangible Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |
GS Engineering [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total |  | 29,880 |  |  |  |  |  |  |  |  | $ 30,502 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  | 8,910 |  |  |  | 8,910 |  |  | 9,110 | 8,910 | 9,110 |  | 8,910 |  |
Goodwill, Ending Balance |  | 17,976 |  |  |  | $ 17,976 |  |  | 15,458 | 17,976 | 15,458 |  | 17,976 |  |
Other Payments to Acquire Businesses |  | 500 |  |  |  |  |  |  |  |  | 500 |  |  |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles |  |  |  |  |  |  |  |  |  |  | 200 |  |  |  |
GS Engineering [Member] | Developed Technology Rights [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  |  |  |  |  | 5,600 |  | 5,600 |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  | 15 years |  |  |  |  |  |  |  |  |
GS Engineering [Member] | Trademarks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  |  |  |  |  | 900 |  | 900 |  |  |  |
GS Engineering [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  |  |  |  |  | 2,600 |  | 2,600 |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  | 12 years |  |  |  |  |  |  |  |  |
Agile Magnetics [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total | $ 39,193 |  |  |  |  |  | $ 39,200 |  | 39,193 |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total | 13,718 |  | $ 17,400 |  |  |  | 17,400 |  | 17,350 |  | 17,350 | $ 13,718 |  | $ 17,400 |
Goodwill, Ending Balance | 20,142 |  | 16,400 |  |  |  | 16,400 |  | 16,434 |  | 16,434 | 20,142 |  | 16,400 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles |  |  |  |  |  |  |  |  | $ 3,632 |  |  |  |  |  |
Agile Magnetics [Member] | Trademarks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  | 3,800 |  |  |  | 3,800 |  |  |  |  |  |  | 3,800 |
Agile Magnetics [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  | 13,500 |  |  |  | $ 13,500 |  |  |  |  |  |  | 13,500 |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  |  | 13 years |  |  |  |  |  |  |  |
Agile Magnetics [Member] | Noncompete Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  | 100 |  |  |  | $ 100 |  |  |  |  |  |  | 100 |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |
Tenibac-Graphion, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  |  | $ 56,726 | $ 57,300 |  |  |  |  | 56,726 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  | 16,860 |  | 15,960 | 16,900 | $ 16,860 |  |  |  | 16,860 |  |  | 16,860 |  |
Goodwill, Ending Balance |  | 34,360 |  | $ 32,949 |  | 34,360 |  |  |  | 34,360 |  |  | 34,360 |  |
Business Acquisition, Goodwill, Expected Tax Deductible Amount |  | $ 34,400 |  |  |  | $ 34,400 |  |  |  | 34,400 |  |  | 34,400 |  |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles |  |  |  |  |  |  |  |  |  | $ 900 |  |  |  |  |
Tenibac-Graphion, Inc. [Member] | Trademarks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  | 4,200 |  |  |  |  |  |  |  |  |  |
Tenibac-Graphion, Inc. [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  | $ 11,300 |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  | 15 years |  |  |  |  |  |  |  |  |  |
Tenibac-Graphion, Inc. [Member] | Other Intangible Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  | $ 1,400 |  |  |  |  |  |  |  |  |  |
Finite-Lived Intangible Asset, Useful Life (Year) |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |
Piazza Rosa Group [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  | 10,056 |  |  |  | $ 900 | $ 10,100 |  |  |  | 12,673 |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total | 3,472 |  | 4,087 |  |  |  | 4,087 | 4,100 |  |  |  | 3,472 |  | 4,087 |
Goodwill, Ending Balance | 7,076 |  | 6,218 |  |  |  | 6,218 |  |  |  |  | 7,076 |  | 6,218 |
Other Payments to Acquire Businesses |  |  | 0 |  |  |  |  | 2,800 |  |  |  | 2,617 |  | 2,600 |
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles |  |  |  |  |  |  |  | (600) |  |  |  | (615) |  |  |
Piazza Rosa Group [Member] | Trademarks (Indefinite-Lived) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  |  |  |  | 1,600 |  |  |  |  |  |  |
Piazza Rosa Group [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  |  |  |  | $ 2,300 |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year) |  |  |  |  |  |  |  | 8 years |  |  |  |  |  |  |
Piazza Rosa Group [Member] | Other Intangible Assets [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  |  |  |  |  |  |  | $ 200 |  |  |  |  |  |  |
Horizon Scientific Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Deferred Compensation Due on Second Anniversary |  |  | $ 2,800 |  |  |  | $ 2,800 |  |  |  |  |  |  | $ 2,800 |
Business Combination, Deferred Compensation Due on Third Anniversary | $ 5,600 |  |  |  |  |  |  |  |  |  |  | $ 5,600 |  |  |
Business Combination, Deferred Compensation Arrangements |  |  |  |  |  |  |  |  |  |  | $ 1,200 |  | $ 2,800 |  |

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