Note 7 - Investments (Details Textual) - USD ($) $ in Thousands		3 Months Ended
	Jan. 25, 2024	Mar. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Treasury Stock, Shares, Acquired (in shares)	52,000
Treasury Stock, Value, Acquired, Cost Method	$ 650	$ 651
Treasury Stock, Common, Shares (in shares)	342,080		342,080	290,080
Series A Preferred Stock [Member] | FG Holdings LLC. [Member]
Preferred Stock, Dividend Rate, Percentage	8.00%
Preferred Stock, Total Return, Percentage of Positive Profits	20.00%
Series B Preferred Stock [Member] | FG Holdings LLC. [Member]
Stock Issued During Period, Periodic Return on Investment, Percentage	1.5
FG Holdings LLC. [Member]
Realized Investment Gains (Losses)	$ (91)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments			$ 0
Investment Owned, Balance, Shares (in shares)				5,666,111
Equity Method Investment, Ownership Percentage				55.00%