Revenue Recognition (Details) - Schedule of Principal Transactions and Proprietary Trading - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Principal transactions and proprietary trading
Realized and unrealized gain on primarily riskless principal transactions	$ 9,275,000	$ 7,643,000
Realized and unrealized gain on primarily riskless principal transactions, Year over Year Increase	1,632,000
Realized and unrealized gain (loss) on portfolio of U.S. government securities	3,819,000	(3,900,000)
Realized and unrealized gain (loss) on portfolio of U.S. government securities, Year over Year Increase	7,719,000
Total Principal transactions and proprietary trading	13,094,000	$ 3,743,000
Total Principal transactions and proprietary trading, Year over Year Increase	$ 9,351,000