Note 5 - Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

	Level I		Level II		Level III
December 31, 2022	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Investments in securities, at fair value (cost $5,802,395)	$	5,860,688	$	-	$	-
W-1 Warrant and Class B Common Stock liability, at fair value		-		-		576,000
Total	$	5,860,688	$	-	$	576,000

	Level I		Level II		Level III
December 31, 2021	Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Investments in securities, at fair value (cost $2,265,489)	$	2,265,088	$	-	$	-
W-1 Warrant and Class B Common Stock liability, at fair value		-		-		-
Total	$	2,265,088	$	-	$	-

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

W-1 Warrant and Class B Common Stock
Inputs below are as of December 31, 2022
ENDI Corp. closing stock price	$	3.75
Warrant exercise price	$	8.00
Estimated equity volatility over remaining term		38.00	%
ENDI Corp. annual rate of dividends		0.00	%
Bond equivalent yield		3.99	%
Remaining term of W-1 Warrant	4.75 years
Discount for lack of marketability		23.00	%
August 11, 2022	$	1,476,000
Less: Unrealized gains reported in other income		522,000
September 30, 2022		954,000
Less: Unrealized gains reported in other income		378,000
December 31, 2022	$	576,000