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Note 2 - Cash, Cash Equivalents, and Investments (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

Cash, Cash Equivalents and Investments [Table Text Block]

		*June 30, 2024 (Unaudited)*
										*Allowance*				*Gross*				*Gross*
		*Level*								*for*				*Unrealized*				*Unrealized*
		⁽¹⁾				*Fair Value*				*Credit Losses*				*Holding Gains*				*Holding Losses*				*Adjusted Cost*
Cash and Cash Equivalents
Cash						$	683,233			$	—			$	—			$	—			$	683,233
Money Market Funds ⁽²⁾			1				5,450,165				—				—				—				5,450,165
Subtotal							6,133,398				—				—				—				6,133,398
Short-Term Investment Securities ⁽³⁾
Corporate Bonds ⁽⁴⁾⁽⁵⁾			2				3,962,295				—				—				(2,222	)			3,964,517
Total						$	10,095,693			$	—			$	—			$	(2,222	)		$	10,097,915

		*December 31, 2023 (Audited)*
									*Allowance*				*Gross*				*Gross*
		*Level*							*for*				*Unrealized*				*Unrealized*
		*(1)*			*Fair Value*				*Credit Losses*				*Holding Gains*				*Holding Losses*				*Adjusted Cost*
Cash and Cash Equivalents
Cash					$	25,775			$	—			$	—			$	—			$	25,775
Money Market Funds ⁽²⁾		1				6,489,253				—				—				—				6,489,253
Subtotal						6,515,028				—				—				—				6,515,028
Short-Term Investment Securities⁽³⁾
Corporate Bonds ⁽⁴⁾⁽⁵⁾		2				748,105				—				—				(185	)			748,290
Total					$	7,263,133			$	—			$	—			$	(185	)		$	7,263,318