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Note 4 - Acquisitions - Preliminary and Final Fair Value of Assets and Liabilities Assumed (Details) - USD ($) $ in Thousands |  |  | 5 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 01, 2018 | Jul. 02, 2018 | Dec. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Jun. 30, 2018
Goodwill |  |  | $ 706,355 | $ 706,355 | $ 706,355 | $ 706,355 |  | $ 597,890
Payments to Acquire Businesses, Net of Cash Acquired, Total |  |  |  | 272,287 |  |  | $ 10,644 |
QT Holdings Corporation [Member] |  |  |  |  |  |  |  |
Current assets, net of cash |  | $ 36 | 36 | 36 | 36 | 36 |  |
Equipment and other long-term assets |  | 284 | 284 | 284 | 284 | 284 |  |
Intangible assets |  | 20,000 | 13,400 | 13,400 | 13,400 | 13,400 |  |
Intangible assets, adjustments |  |  |  |  |  | (6,600) |  |
Goodwill |  | 9,790 | 13,554 | 13,554 | 13,554 | 13,554 |  |
Goodwill, Purchase Accounting Adjustments |  |  |  |  |  | 3,764 |  |
Total assets acquired |  | 30,110 | 27,274 | 27,274 | 27,274 | 27,274 |  |
Total assets acquired, adjustments |  |  |  |  |  | (2,836) |  |
Liabilities |  | 765 | 765 | 765 | 765 | 765 |  |
Deferred income taxes, net |  | 3,741 | 1,148 | 1,148 | 1,148 | 1,148 |  |
Deferred income taxes, net, adjustments |  |  |  |  |  | (2,593) |  |
Net assets acquired |  | 25,604 | 25,361 | 25,361 | 25,361 | 25,361 |  |
Net assets acquired, adjustments |  |  |  |  | (243) | (243) |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total |  | 20,404 |  |  | 20,461 |  |  |
Cash paid, net of cash acquired, adjustments |  |  |  |  | 57 |  |  |
Fair value of contingent consideration |  | 5,200 |  |  | 4,900 |  |  |
Fair value of contingent consideration, adjustments |  |  |  |  | (300) |  |  |
Net assets acquired |  | $ 25,604 |  |  | 25,361 |  |  |
Exosome Diagnostics, Inc [Member] |  |  |  |  |  |  |  |
Current assets, net of cash | $ 5,118 |  | 2,557 | 2,557 | 2,557 | 2,557 |  |
Equipment and other long-term assets | 2,212 |  | 2,212 | 2,212 | 2,212 | 2,212 |  |
Intangible assets | 180,000 |  | 180,000 | 180,000 | 180,000 | 180,000 |  |
Goodwill | 96,592 |  | 99,027 | 99,027 | 99,027 | 99,027 |  |
Goodwill, Purchase Accounting Adjustments |  |  | 2,435 |  |  |  |  |
Total assets acquired | 283,922 |  | 283,796 | 283,796 | 283,796 | 283,796 |  |
Liabilities | 2,624 |  | 2,498 | 2,498 | 2,498 | 2,498 |  |
Deferred income taxes, net | 27,673 |  | 27,673 | 27,673 | 27,673 | 27,673 |  |
Net assets acquired | 253,625 |  | 253,625 | $ 253,625 | $ 253,625 | $ 253,625 |  |
Payments to Acquire Businesses, Net of Cash Acquired, Total | 251,825 |  | 251,825 |  |  |  |  |
Fair value of contingent consideration | 1,800 |  | 1,800 |  |  |  |  |
Net assets acquired | $ 253,625 |  | 253,625 |  |  |  |  |
Current assets, net of cash, adjustment |  |  | (2,561) |  |  |  |  |
Total assets acquired, adjustment |  |  | (126) |  |  |  |  |
Liabilities, adjustment |  |  | $ (126) |  |  |  |  |

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- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary difference assumed at the acquisition date that are classified as noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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