Quarterly report pursuant to Section 13 or 15(d)

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 ($)
Jun. 30, 2023
Dec. 31, 2022
Cash equivalents(1) [1] $ 6,133,928 $ 7,248,946
Investments(2) 2,976,649 4,933,550 [2]
Total 9,110,577 12,182,496
Fair Value, Inputs, Level 1 [Member]    
Cash equivalents(1) 6,133,928 [1] 7,248,946
Investments(2) [2] 2,976,649 4,933,550
Total $ 9,110,577 $ 12,182,496
[1] Cash equivalents as of June 30, 2023, and December 31, 2022, represent the fair value of the Company’s investment in two money market accounts and U.S. Treasury Bills with maturities at the date of purchase three months or less.
[2] Investments represents the fair value of the Company’s investment in U.S. Treasury Bills with maturities at the date of purchase from over three months to one year.