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Note 2 - Acquisitions - Preliminary and Final Fair Value of Assets and Liabilities Assumed (Details) - USD ($) $ in Thousands |  |  |  |  | 5 Months Ended | 6 Months Ended | 10 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2018 | Feb. 01, 2018 | Jan. 02, 2018 | Sep. 05, 2017 | Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Goodwill | $ 597,890 |  |  |  | $ 597,890 | $ 597,890 | $ 597,890 | $ 597,890 | $ 579,026 | $ 430,882
Goodwill, Purchase Accounting Adjustments |  |  |  |  |  |  |  |  | 1,809 |
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  |  |  |  |  |  | 67,851 | 253,785 | 91,423
Cash paid, net of cash acquired |  |  |  |  |  |  |  | 67,851 | $ 253,785 | $ 91,423
Trevigen Inc. [Member] |  |  |  |  |  |  |  |  |  |
Current assets, net of cash | 1,662 |  |  | $ 1,662 | 1,662 | 1,662 | 1,662 | 1,662 |  |
Adjustments to fair value, current assets, net of cash |  |  |  |  |  |  |  |  |  |
Equipment and other long-term assets | 53 |  |  | 154 | 53 | 53 | 53 | 53 |  |
Adjustments to fair value, equipment and other long-term assets |  |  |  |  |  |  | (101) |  |  |
Goodwill | 5,991 |  |  | 4,595 | 5,991 | 5,991 | 5,991 | 5,991 |  |
Goodwill, Purchase Accounting Adjustments |  |  |  |  |  |  | 1,396 |  |  |
Total assets acquired | 13,226 |  |  | 13,511 | 13,226 | 13,226 | 13,226 | 13,226 |  |
Adjustments to fair value, total assets acquired |  |  |  |  |  |  | (285) |  |  |
Liabilities | 387 |  |  | 92 | 387 | 387 | 387 | 387 |  |
Adjustments to fair value, liabilities |  |  |  |  |  |  | 295 |  |  |
Deferred income taxes, net | 2,195 |  |  | 2,785 | 2,195 | 2,195 | 2,195 | 2,195 |  |
Adjustments to fair value, deferred income taxes, net |  |  |  |  |  |  | (590) |  |  |
Net assets acquired | 10,644 |  |  | 10,634 | 10,644 | 10,644 | 10,644 | 10,644 |  |
Adjustments to fair value, net assets acquired |  |  |  |  |  |  | 10 |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total | 10,644 |  |  | 10,634 |  |  |  |  |  |
Adjustments to fair value, cash paid, net of cash acquired |  |  |  |  |  |  | 10 |  |  |
Cash paid, net of cash acquired | 10,644 |  |  | 10,634 |  |  |  |  |  |
Trevigen Inc. [Member] | Developed Technology Rights [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 5,100 |  |  | 3,800 | 5,100 | 5,100 | 5,100 | 5,100 |  |
Adjustments to fair value, intangible assets |  |  |  |  |  |  | 1,300 |  |  |
Trevigen Inc. [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 260 |  |  | 1,900 | 260 | 260 | 260 | 260 |  |
Adjustments to fair value, intangible assets |  |  |  |  |  |  | (1,640) |  |  |
Trevigen Inc. [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 160 |  |  | $ 1,400 | 160 | 160 | 160 | 160 |  |
Adjustments to fair value, intangible assets |  |  |  |  |  |  | (1,240) |  |  |
Atlanta Biologicals [Member] |  |  |  |  |  |  |  |  |  |
Current assets, net of cash | 15,722 |  | $ 18,678 |  | 15,722 | 15,722 | 15,722 | 15,722 |  |
Adjustments to fair value, current assets, net of cash |  |  |  |  |  | (2,956) |  |  |  |
Equipment and other long-term assets | 4,901 |  | 4,348 |  | 4,901 | 4,901 | 4,901 | 4,901 |  |
Adjustments to fair value, equipment and other long-term assets |  |  |  |  |  | 553 |  |  |  |
Goodwill | 10,195 |  | 21,695 |  | 10,195 | 10,195 | 10,195 | 10,195 |  |
Goodwill, Purchase Accounting Adjustments |  |  |  |  |  | (11,500) |  |  |  |
Total assets acquired | 59,718 |  | 56,221 |  | 59,718 | 59,718 | 59,718 | 59,718 |  |
Adjustments to fair value, total assets acquired |  |  |  |  |  | 3,497 |  |  |  |
Liabilities | 90 |  | 90 |  | 90 | 90 | 90 | 90 |  |
Adjustments to fair value, liabilities |  |  |  |  |  |  |  |  |  |
Deferred income taxes, net | 8,354 |  | 4,845 |  | 8,354 | 8,354 | 8,354 | 8,354 |  |
Adjustments to fair value, deferred income taxes, net |  |  |  |  |  | 3,509 |  |  |  |
Net assets acquired | 51,274 |  | 51,286 |  | 51,274 | 51,274 | 51,274 | 51,274 |  |
Adjustments to fair value, net assets acquired |  |  |  |  |  | (12) |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total | 51,274 |  | 51,286 |  |  |  |  |  |  |
Adjustments to fair value, cash paid, net of cash acquired |  |  |  |  |  | (12) |  |  |  |
Cash paid, net of cash acquired | 51,274 |  | 51,286 |  |  |  |  |  |  |
Atlanta Biologicals [Member] | Developed Technology Rights [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 23,000 |  | 9,000 |  | 23,000 | 23,000 | 23,000 | 23,000 |  |
Adjustments to fair value, intangible assets |  |  |  |  |  | 14,700 |  |  |  |
Atlanta Biologicals [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 3,600 |  | 1,500 |  | 3,600 | 3,600 | 3,600 | 3,600 |  |
Adjustments to fair value, intangible assets |  |  |  |  |  | 1,400 |  |  |  |
Atlanta Biologicals [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | 2,300 |  | $ 1,000 |  | 2,300 | 2,300 | 2,300 | 2,300 |  |
Adjustments to fair value, intangible assets |  |  |  |  |  | 1,300 |  |  |  |
Eurocell Diagnostics, SAS [Member] |  |  |  |  |  |  |  |  |  |
Current assets, net of cash | 512 | $ 512 |  |  | 512 | 512 | 512 | 512 |  |
Adjustments to fair value, current assets, net of cash |  |  |  |  |  |  |  |  |  |
Equipment and other long-term assets | 188 | 188 |  |  | 188 | 188 | 188 | 188 |  |
Adjustments to fair value, equipment and other long-term assets |  |  |  |  |  |  |  |  |  |
Goodwill | 2,910 | 113 |  |  | 2,910 | 2,910 | 2,910 | 2,910 |  |
Goodwill, Purchase Accounting Adjustments |  |  |  |  | 2,797 |  |  |  |  |
Total assets acquired | 9,882 | 7,085 |  |  | 9,882 | 9,882 | 9,882 | 9,882 |  |
Adjustments to fair value, total assets acquired |  |  |  |  | 2,797 |  |  |  |  |
Liabilities | 483 | 483 |  |  | 483 | 483 | 483 | 483 |  |
Adjustments to fair value, liabilities |  |  |  |  |  |  |  |  |  |
Deferred income taxes, net | 2,070 | 2,070 |  |  | 2,070 | 2,070 | 2,070 | 2,070 |  |
Adjustments to fair value, deferred income taxes, net |  |  |  |  |  |  |  |  |  |
Net assets acquired | 7,329 | 4,532 |  |  | 7,329 | 7,329 | 7,329 | 7,329 |  |
Adjustments to fair value, net assets acquired |  |  |  |  | 2,797 |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total | 5,933 | 3,136 |  |  |  |  |  |  |  |
Adjustments to fair value, cash paid, net of cash acquired |  |  |  |  | 2,797 |  |  |  |  |
Cash paid, net of cash acquired | 5,933 | 3,136 |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Liabilities Incurred | 1,396 | 1,396 |  |  |  |  |  |  |  |
Adjustments to fair value, Consideration payable |  |  |  |  |  |  |  |  |  |
Eurocell Diagnostics, SAS [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles | $ 6,272 | $ 6,272 |  |  | 6,272 | $ 6,272 | $ 6,272 | $ 6,272 |  |
Adjustments to fair value, intangible assets |  |  |  |  |  |  |  |  |  |

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