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Note 4 - Business Combination - Fair Values of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019 | Dec. 03, 2019
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Goodwill | $ 2,725 | $ 2,725 |
NanoString [Member] |  |  |
Total identifiable intangible assets acquired |  |  | $ 54,420
Goodwill |  |  | 1,668
Net assets acquired |  |  | 56,088
NanoString [Member] | Prosigna Product Technology [Member] |  |  |
Total identifiable intangible assets acquired |  |  | 4,120
NanoString [Member] | Prosigna Customer Relationships [Member] |  |  |
Total identifiable intangible assets acquired |  |  | 2,430
NanoString [Member] | nCounter FLEX Dx License [Member] |  |  |
Total identifiable intangible assets acquired |  |  | 46,880
NanoString [Member] | LymphMark Product Technology [Member] |  |  |
Total identifiable intangible assets acquired |  |  | $ 990

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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. + 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=121647850&loc=d3e4845-128472 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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