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Capital Requirements (Details) - USD ($) | Jan. 02, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Capital Requirements (Details) [Line Items] |  |  |
Net capital |  | $ 1,000,000 |
Percentage of aggregate debit balance to net capital |  | 2.00% | 44.49%
Net capital in excess of minimum requirement |  | $ 54,300,000 |
Net capital in excess amount |  |  | $ 1,400,000
Cash and securities deposits |  | 158,800,000 | 135,200,000
Reserve account excess amount |  |  | 11,900,000
Excess deposit requirements amount |  | 1,000,000 | 264,300,000
Maximum [Member] |  |  |
Capital Requirements (Details) [Line Items] |  |  |
Reserve account excess amount |  | 1,200,000 |
Minimum [Member] |  |  |
Capital Requirements (Details) [Line Items] |  |  |
Reserve account excess amount |  | 200,000 |
MSCO [Member] |  |  |
Capital Requirements (Details) [Line Items] |  |  |
Net capital |  | $ 56,100,000 |
Percentage of aggregate debit balance to net capital |  | 63.42% |
Net capital in excess of minimum requirement |  |  | 29,200,000
Minimum net capital required |  | $ 1,800,000 |
Net capital in excess amount |  |  | 30,600,000
Cash and securities deposits |  | 273,100,000 | 276,200,000
Cash deposits in excess of minimum requirement |  | 157,600,000 | 135,200,000
Minimum cash deposits required |  | 115,500,000 | 141,000,000
Reserve account excess amount |  | 26,200,000 |
Excess deposit requirements amount |  | 246,900,000 |
MSCO [Member] | Subsequent Event [Member] |  |  |
Capital Requirements (Details) [Line Items] |  |  |
Cash deposits in excess of minimum requirement | $ 3,200,000 |  |
RISE [Member] |  |  |
Capital Requirements (Details) [Line Items] |  |  |
Minimum net capital required |  | 250,000 | 250,000
RISE [Member] | Maximum [Member] |  |  |
Capital Requirements (Details) [Line Items] |  |  |
Net capital in excess amount |  | 1,300,000 | 1,200,000
RISE [Member] | Minimum [Member] |  |  |
Capital Requirements (Details) [Line Items] |  |  |
Net capital in excess amount |  | $ 1,000,000 | $ 900,000

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- Definition Minimum amount of net capital required to be maintained by broker-dealer subsidiary to engage in security transaction, calculated under Aggregate Indebtedness Standard. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Rule 15c3-1 -Number 240 -Section 15c3-1 -Publisher SEC + Details
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