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Note 5 - Fair Value Measurements - Financial Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Fair Value, Inputs, Level 1 [Member] |  |
Fair value of contingent consideration | $ 0 |
Total | 1,600,663 | $ 1,343,370
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member] |  |
Money market funds | 1,600,663 | 1,343,370
Fair Value, Inputs, Level 2 [Member] |  |
Fair value of contingent consideration | 0 |
Total | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member] |  |
Money market funds | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Fair value of contingent consideration | 930,000 |
Total | 930,000 | 0
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member] |  |
Money market funds | $ 0 | $ 0

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- Definition Fair value of contingent consideration asset in a business combination. + References No definition available. + Details
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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 http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Details
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- Details
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