Note 7 - Investments (Details Textual) - USD ($) $ in Thousands			12 Months Ended
	Jan. 25, 2024	Nov. 14, 2022	Dec. 31, 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
Gain (Loss) on Investments			$ (91)	$ (740)
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%
Gain (Loss) on Investments			$ (91)	$ (740)