XML 37 R18.htm IDEA: XBRL DOCUMENT

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

12 Months Ended

Dec. 31, 2023

Notes Tables

Cash, Cash Equivalents and Investments [Table Text Block]

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

		*December 31, 2022*
									*Gross*				*Gross*
		*Level*							*Unrealized*				*Unrealized*
		*(1)*			*Fair Value*				*Holding Gains*				*Holding Losses*				*Adjusted Cost*
Cash and Cash Equivalents
Cash					$	26,782			$	—			$	—			$	26,782
Money Market Funds		1				5,767,490				—				—				5,767,490
Subtotal						5,794,272				—				—				5,794,272
Short-Term Investment Securities ⁽²⁾
Corporate Bonds ⁽³⁾		2				6,800,062				—				(47,208	)			6,847,270
Total					$	12,594,334			$	—			$	(47,208	)		$	12,641,542