Marketable Investments (Details Narrative) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Marketable Securities [Line Items]
Held value of marketable securities	$ 7,647,000		$ 7,631,000
Fair Value	7,647,000		7,631,000
Short-Term Investments	7,647,000		7,631,000
Net gain recognized during the period on equity securities	(92,000)	$ 290,000
Net gains and losses recognized during the period on equity securities sold during the period	(20,000)	(87,000)
Unrealized gains and losses recognized during the reporting period on equity securities still held at the reporting date	(72,000)	$ 203,000
Mutual Funds [Member]
Marketable Securities [Line Items]
Fair Value	7,647,000		7,631,000
Short-Term Investments	$ 7,647,000		$ 7,631,000