Note 7 - Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Marketable Securities [Table Text Block]

	As of March 31, 2024		As of December 31, 2023
Marketable securities:
Amortized cost	$	2,702	$	40,110
Unrealized gains, net		35		289,947
Total fair value	$	2,737	$	330,057

Gain (Loss) on Securities [Table Text Block]

	Three Months Ended March 31,
	2024			2023
Loss on marketable securities, net	$	(27,686	)	$	(10,144	)
Dividend income (included in Other income, net and Special dividend income)	$	1,705		$	197,575

	Three Months Ended March 31,
	2024			2023
Loss on marketable securities, net	$	(27,686	)	$	(10,144	)
Less: Net loss recognized related to marketable securities sold		27,695			10,418
Unrealized gain related to marketable securities still held	$	9		$	274