Principal Transactions and Proprietary Trading (Details) - Schedule of principal transactions and proprietary trading - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Principal transactions and proprietary trading
Realized and unrealized gain on primarily riskless principal transactions	$ 7,643,000	$ 15,675,000	$ (8,032,000)
Unrealized loss on portfolio of U.S. government securities	(3,900,000)	(28,000)	(3,872,000)
Total Principal transactions and proprietary trading	$ 3,743,000	$ 15,647,000	$ (11,904,000)

Amount of realized and unrealized gain (loss), from the firm's direct investment activity, conducted separately from customer trading activities, and includes, but is not limited to, investments in private equity, alternative investment products, real estate, and exchanges and memberships.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.2,3)
-URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.13(g),(h))
-URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

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