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Note 2 - Fair Value of Financial Instruments - Financial Instruments (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Reported Value Measurement [Member] |  |
Total | $ 9,330,067 | $ 9,071,862
Estimate of Fair Value Measurement [Member] |  |
Total | 9,250,913 | 9,046,364
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Cash and Cash Equivalents Excluding Certificates of Deposit [Member] |  |
Cash and cash equivalents | 3,421,576 | 7,546,689
Fair Value, Inputs, Level 2 [Member] | Reported Value Measurement [Member] | Certificates of Deposit [Member] |  |
Cash and cash equivalents | 5,908,491 | 1,525,173
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Cash and Cash Equivalents Excluding Certificates of Deposit [Member] |  |
Cash and cash equivalents | 3,421,576 | 7,546,689
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] | Certificates of Deposit [Member] |  |
Cash and cash equivalents | $ 5,829,337 | $ 1,499,675

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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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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