Annual report [Section 13 and 15(d), not S-K Item 405]

Note 2 - Significant Accounting Policies - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)

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Note 2 - Significant Accounting Policies - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Fair Value, Inputs, Level 1 [Member]    
Cash equivalents(1) [1],[2] $ 60,875,969 $ 45,531,646
Total 60,875,969 45,531,646
Fair Value, Inputs, Level 2 [Member]    
Cash equivalents(1) [1],[2] 60,875,969 45,531,646
Total $ 60,875,969 $ 45,531,646
[1] Cash equivalents as of December 31, 2024 represent the fair value of the Company’s investments in money market accounts and U.S. Treasury securities. As of December 31, 2025, cash equivalents represent the fair value of the Company’s investments in money market accounts, U.S. Treasury securities and commercial paper. All cash equivalents have maturities at the date of purchase of three months or less. These securities are classified as Level 1 within the fair value hierarchy as fair value is determined based on unadjusted quoted prices in active markets due to the short-term nature of these instruments.
[2] Cash equivalents as of September 30, 2025, and December 31, 2024, represent the fair value of the Company’s investments in money market accounts and U.S. Treasury securities with maturities at the date of purchase of three months or less.