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Note 2 - Cash, Cash Equivalents, and Investments - Major Security Type (Details) - USD ($)
Dec. 31, 2024
Dec. 31, 2023
Cash and cash equivalent, fair value $ 6,506,750 $ 6,515,028
Cash, adjusted cost 926,287 25,775
Money Market Funds, adjusted cost 5,580,463 6,489,253
Subtotal, adjusted cost 6,506,750 6,515,028
Corporate Bonds, gross unrealized holding gains 0 0
Corporate Bonds, gross unrealized holding losses (149) (185)
Total, fair value 9,263,178 7,263,133
Total, adjusted 9,263,327 7,263,318
Cash [Member]    
Cash and cash equivalent, fair value 926,287 25,775
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash and cash equivalent, fair value 5,580,463 6,489,253
Short-term Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]    
Corporate Bonds, fair value [1],[2] 2,756,428 748,105
Corporate Bonds, gross unrealized holding gains [1],[2] 0 0
Corporate Bonds, gross unrealized holding losses [1],[2] (149) (185)
Corporate Bonds, adjusted cost [1],[2] $ 2,756,577 $ 748,290
[1] For the years ended December 31, 2024 and 2023, the Company received discounts of $78,770 and $39,012 to purchase held-to-maturity investment securities, respectively.
[2] Short-term investment securities will mature within 12 months or less, from the applicable reporting date.