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Revenue Recognition (Details) - Schedule of Principal Transactions and Proprietary Trading - USD ($) | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Principal transactions and proprietary trading |  |
Realized and unrealized gain on primarily riskless principal transactions | $ 3,443,000 | $ 1,799,000
Realized and unrealized gain on primarily riskless principal transactions, Year over Year Increase | 1,644,000 |
Realized and unrealized gain on portfolio of U.S. government securities | 63,000 | 1,001,000
Realized and unrealized gain on portfolio of U.S. government securities, Year over Year Increase | (938,000) |
Total Principal transactions and proprietary trading | 3,506,000 | $ 2,800,000
Total Principal transactions and proprietary trading, Year over Year Increase | $ 706,000 |

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(h)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(g)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
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