Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

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-Publisher FASB
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-Topic 805
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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.

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Fair value of financial and nonfinancial obligations.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

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Note 3 - Fair Value Measurement - Financial Assets and Liabilities on Recurring Basis (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jun. 30, 2020
Marketable debt securities	$ 44,592,000
Contingent consideration - business combinations			$ 221,000	$ 388,000
Fair Value, Recurring [Member]
Assets	56,008,000	$ 63,873,000
Contingent consideration - business combinations	4,456,000	10,027,000
Debt	25,607,000
Liabilities	30,063,000	10,027,000
Fair Value, Recurring [Member] \| US Government Agencies Debt Securities [Member]
Marketable debt securities	15,051,000
Fair Value, Recurring [Member] \| Other Debt Obligations [Member]
Marketable debt securities	3,494,000
Fair Value, Recurring [Member] \| Money Market Funds [Member]
Cash equivalents	11,416,000	63,873,000
Fair Value, Recurring [Member] \| Corporate Debt Securities, Cash Equivalents [Member]
Cash equivalents	26,047,000
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Assets	26,467,000	63,873,000
Contingent consideration - business combinations	0	0
Debt	0
Liabilities	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| US Government Agencies Debt Securities [Member]
Marketable debt securities	15,051,000
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Other Debt Obligations [Member]
Marketable debt securities	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Money Market Funds [Member]
Cash equivalents	11,416,000	63,873,000
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member] \| Corporate Debt Securities, Cash Equivalents [Member]
Cash equivalents	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Assets	29,541,000	0
Contingent consideration - business combinations	0	0
Debt	25,607,000
Liabilities	25,607,000	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| US Government Agencies Debt Securities [Member]
Marketable debt securities	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Other Debt Obligations [Member]
Marketable debt securities	3,494,000
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Money Market Funds [Member]
Cash equivalents	0	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member] \| Corporate Debt Securities, Cash Equivalents [Member]
Cash equivalents	26,047,000
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Assets	0	0
Contingent consideration - business combinations	4,456,000	10,027,000
Debt	0
Liabilities	4,456,000	10,027,000
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| US Government Agencies Debt Securities [Member]
Marketable debt securities	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Other Debt Obligations [Member]
Marketable debt securities	0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Money Market Funds [Member]
Cash equivalents	0	$ 0
Fair Value, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member] \| Corporate Debt Securities, Cash Equivalents [Member]
Cash equivalents	$ 0