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Note 6 - Fair Value Measurements - Financial Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Fair value of contingent consideration	$ 0	$ 930,000
Money Market Funds [Member]
Money market funds	58,242	1,660,663
Fair Value, Inputs, Level 1 [Member]
Fair value of contingent consideration	0	0
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Money market funds	58,242	1,600,663
Fair Value, Inputs, Level 2 [Member]
Fair value of contingent consideration	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	0	930,000
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member]
Money market funds	$ 0	$ 0

X

- 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

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X

- Definition

Fair value of contingent consideration asset in a business combination.

+ References

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