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Note 2 - Fair Value Measurement - Financial Assets and Liabilities on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Assets | $ 52,380 | $ 63,873
Liabilities | 13,562 | 17,242
Contingent Consideration Liabilities [Member] |  |
Liabilities | 6,692 |
Long-Term Debt [Member] |  |
Liabilities | 6,870 | 7,215
Money Market Funds [Member] |  |
Assets | 52,380 | 63,873
Contingent Consideration Liabilities [Member] |  |
Liabilities |  | 10,027
Fair Value, Inputs, Level 1 [Member] |  |
Assets | 52,380 | 63,873
Liabilities | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Contingent Consideration Liabilities [Member] |  |
Liabilities | 0 |
Fair Value, Inputs, Level 1 [Member] | Long-Term Debt [Member] |  |
Liabilities | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] |  |
Assets | 52,380 | 63,873
Fair Value, Inputs, Level 1 [Member] | Contingent Consideration Liabilities [Member] |  |
Liabilities |  | 0
Fair Value, Inputs, Level 2 [Member] |  |
Assets | 0 | 0
Liabilities | 6,870 | 7,215
Fair Value, Inputs, Level 2 [Member] | Contingent Consideration Liabilities [Member] |  |
Liabilities | 0 |
Fair Value, Inputs, Level 2 [Member] | Long-Term Debt [Member] |  |
Liabilities | 6,870 | 7,215
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] |  |
Assets | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Contingent Consideration Liabilities [Member] |  |
Liabilities |  | 0
Fair Value, Inputs, Level 3 [Member] |  |
Assets | 0 | 0
Liabilities | 6,692 | 10,027
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration Liabilities [Member] |  |
Liabilities | 6,692 |
Fair Value, Inputs, Level 3 [Member] | Long-Term Debt [Member] |  |
Liabilities | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] |  |
Assets | $ 0 | 0
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration Liabilities [Member] |  |
Liabilities |  | $ 10,027

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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