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Note 19 - Related Party Transactions (Details Textual) - USD ($) $ in Thousands			1 Months Ended			3 Months Ended		12 Months Ended
	Apr. 17, 2024	Nov. 02, 2023	Feb. 28, 2024	May 31, 2023	Mar. 31, 2023	Sep. 30, 2024	Jun. 30, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2018
Gain (Loss) on Investments								$ 1,379	$ 1,971	$ 3,122
Atid Drilling Ltd. [Member]
Equity Method Investment, Ownership Percentage												37.50%
Common Class B [Member]
Treasury Stock, Value, Acquired, Cost Method								$ 48,300	37,700
Howard Jonas [Member]
Related Party Transaction, Amounts of Transaction						$ 900
Howard Jonas [Member] \| Common Class B [Member]
Stock Issued During Period, Shares, New Issues (in shares)			49,632	98,709
Genie Foundation [Member] \| Common Class B [Member]
Stock Issued During Period, Shares, New Issues (in shares)		50,000
Stock Issued During Period, Value, Treasury Stock Reissued		$ 1,000
Treasury Stock, Shares, Acquired (in shares)	50,000
Treasury Stock, Value, Acquired, Cost Method	$ 800
Rafael Holdings, Inc [Member]
Gain (Loss) on Investments											$ (800)
Rafael Holdings, Inc [Member] \| Common Class B [Member]
Stock Issued During Period, Shares, New Issues (in shares)					195,501
Treasury Stock, Shares, Acquired (in shares)							150,000
Treasury Stock, Value, Acquired, Cost Method							$ 300
Stock Issued During Period, Value, New Issues					$ 300
Investment Owned, Balance, Shares (in shares)								216,393
Investments								$ 400
Atid Drilling Ltd. [Member]
Proceeds from Sale of Equity Method Investments					$ 100
IGM Brokerage Corp [Member] \| Insurance [Member]
Related Party Transaction, Amounts of Transaction								400	$ 400	$ 400
Accounts Payable								$ 0