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Note 8 - Goodwill and Intangible Assets (Details Textual) - USD ($) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Mar. 31, 2022 | Dec. 31, 2021
Amortization of Intangible Assets | $ 2,863,000 | $ 1,882,000 | $ 5,725,000 | $ 2,815,000 |  |
Finite-Lived Intangible Assets, Net, Ending Balance | 67,977,000 |  | 67,977,000 |  |  |
Abandoned In Process Research and Development [Member] |  |  |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill), Total | 8,000,000.0 |  |  |  |  |
In Process Research and Development Not Related to Abandonment [Member] |  |  |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill), Total |  |  | 50,900,000 |  |  |
Finite-Lived Intangible Assets, Net, Ending Balance |  |  |  |  | $ 59,400,000 |
Technology-Based Intangible Assets [Member] |  |  |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill), Total | 3,500,000 |  |  |  |  |
Finite-Lived Intangible Assets, Net, Ending Balance | 27,644,000 |  | 27,644,000 |  | 31,200,000 | $ 34,153,000
Customer Relationships [Member] |  |  |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill), Total | 1,500,000 |  |  |  |  |
Finite-Lived Intangible Assets, Net, Ending Balance | 13,008,000 |  | 13,008,000 |  | 14,500,000 | 15,740,000
Trade Names [Member] |  |  |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill), Total | 5,900,000 |  |  |  |  |
Finite-Lived Intangible Assets, Net, Ending Balance | 26,064,000 |  | 26,064,000 |  | 32,000,000.0 | 33,268,000
Noncompete Agreements [Member] |  |  |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill), Total | 4,000 |  |  |  |  |
Finite-Lived Intangible Assets, Net, Ending Balance | $ 1,261,000 |  | $ 1,261,000 |  | $ 1,300,000 | $ 1,548,000

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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