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Summary of Significant Accounting Policies (Details) - USD ($) shares in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimates closing, term | 5 years |
Federal deposit insurance corporation | $ 250,000 | $ 250,000
Cash deposit in special reserve | 135,200,000 |
Securities segregated for regulatory purposes | $ 141,000,000 |
Estimated useful lifes, term | 4 years |
Impairment loss related to intangible assets | $ 0 | 699,000
One-time business development credit | 3,000,000 |
Deferred contract incentive | 100,000 |
Net revenue | 137,000 |
Net expense | $ 22,000 |
Description of stock borrow / stock loan | stock borrow / stock loan revenue was $14,518,000 ($33,883,000 gross revenue less $19,365,000 expenses). For the year ended December 31, 2021, stock borrow / stock loan revenue was $11,864,000 ($29,441,000 gross revenue minus $17,577,000 expenses). |
Advertising and promotion costs | $ 543,000 | $ 44,000
Shares authorized (in Shares) | 100 |
Property [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lifes, term | 40 years |
RISE [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Percentage of ownership | 68.00% |
Minimum [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Leases, term | 1 year |
Contra expense, term | 1 year |
Maximum [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Leases, term | 4 years 6 months |
Contra expense, term | 4 years |
Software [Member] |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |
Estimated useful lifes, term | 3 years |

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