Note 2 - Fair Value of Financial Instruments - Financial Instruments (Details) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Reported Value Measurement [Member]
Total	$ 17,957,777	$ 18,010,108
Estimate of Fair Value Measurement [Member]
Total	17,957,777	18,010,108
Fair Value, Inputs, Level 2 [Member] \| Cash and Cash Equivalents Excluding Certificates of Deposit [Member] \| Reported Value Measurement [Member]
Cash and cash equivalents, fair value	12,712,553	18,010,108
Fair Value, Inputs, Level 2 [Member] \| Cash and Cash Equivalents Excluding Certificates of Deposit [Member] \| Estimate of Fair Value Measurement [Member]
Cash and cash equivalents, fair value	12,712,553	18,010,108
Fair Value, Inputs, Level 2 [Member] \| Certificates of Deposit [Member] \| Reported Value Measurement [Member]
Cash and cash equivalents, fair value	2,229,234	0
Fair Value, Inputs, Level 2 [Member] \| Certificates of Deposit [Member] \| Estimate of Fair Value Measurement [Member]
Cash and cash equivalents, fair value	2,229,234	0
Fair Value, Inputs, Level 1 [Member] \| Reported Value Measurement [Member]
Government securities	3,015,990	0
Fair Value, Inputs, Level 1 [Member] \| Estimate of Fair Value Measurement [Member]
Government securities	$ 3,015,990	$ 0

- Definition

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References + Details