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Note 2 - Cash, Cash Equivalents, and Investments - Major Security Type (Details) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Cash and cash equivalent, fair value $ 10,569,814 $ 6,515,028
Cash, adjusted cost 843,189 25,775
Money Market Funds, adjusted cost [1] 9,726,625 6,489,253
Cash and cash equivalents, adjusted cost 10,569,814 6,515,028
Corporate Bonds, allowance for credit loss 0 0
Corporate Bonds, gross unrealized holding gains 0 0
Corporate Bonds, gross unrealized holding losses (930) (185)
Total, fair value 12,036,886 7,263,133
Total, adjusted 12,037,816 7,263,318
Cash [Member]    
Cash and cash equivalent, fair value 843,189 25,775
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]    
Cash and cash equivalent, fair value [1] 9,726,625 6,489,253
Short-term Corporate Bonds [Member]    
Corporate Bonds, adjusted cost [2],[3] 1,468,002 748,290
Short-term Corporate Bonds [Member] | Fair Value, Inputs, Level 2 [Member]    
Corporate Bonds, fair value [2],[3] 1,467,072 748,105
Corporate Bonds, allowance for credit loss [2],[3] 0 0
Corporate Bonds, gross unrealized holding gains [2],[3] 0 0
Corporate Bonds, gross unrealized holding losses [2],[3] $ (930) $ (185)
[1] All our money market funds were invested in U.S. Government money market funds.
[2] For the three months ended March 31, 2024 and 2023, the Company received discounts of $1,547 and $15,233 to purchase held-to-maturity investment securities, respectively. For the year ended December 31, 2023, the Company received discounts of $39,012 to purchase held-to-maturity investment securities.
[3] The Company considers the declines in market value of its investment portfolio to be temporary in nature. As of March 31, 2024 and December 31, 2023, the Company did not consider any of its investments to be other-than-temporarily impaired and no allowance for credit losses was recorded.