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Capital Requirements (Details) - USD ($) | Jun. 30, 2025 | Jan. 02, 2025 | Dec. 31, 2024
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Capital Requirements [Line Items] |  |  |
Net capital | $ 1,000,000 |  |
Net capital requirement for the percentage of aggregate debit items | 2.00% |  |
Cash | $ 146,051,000 |  | $ 204,587,000
Securities | 44,800,000 |  |
Deposit requirements amount | 1,100,000 |  | 1,200,000
MSCO [Member] |  |  |
Capital Requirements [Line Items] |  |  |
Net capital | 62,400,000 |  | 63,900,000
Net capital excess required | 60,500,000 |  | 62,000,000
Required net capital | $ 1,900,000 |  | $ 1,900,000
Percentage of aggregate debit balance to net capital | 66.45% |  | 65.84%
Cash and securities deposits | $ 144,700,000 |  | $ 203,300,000
Cash | 99,900,000 |  | 134,500,000
Securities |  |  | 68,800,000
Cash deposits in excess of minimum requirement | 3,800,000 | $ 1,700,000 | 9,500,000
Deposit requirements amount | 140,900,000 |  | 193,800,000
Special reserve account | 1,300,000 |  | 1,300,000
Reserve account excess amount | 200,000 |  | 100,000
RISE [Member] | Maximum [Member] |  |  |
Capital Requirements [Line Items] |  |  |
Net capital | 1,200,000 |  | 1,300,000
RISE [Member] | Minimum [Member] |  |  |
Capital Requirements [Line Items] |  |  |
Required net capital | 250,000 |  | 250,000
Net capital in excess amount | $ 900,000 |  | $ 1,000,000

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