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Summary of Significant Accounting Policies (Details) - USD ($)
shares in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Summary of Significant Accounting Policies [Line Items]    
Federal deposit insurance corporation $ 250,000  
Cash segregated amount 135,800,000 $ 158,800,000
Securities segregated for regulatory purposes 68,800,000 115,500,000
Business development credit 3,000,000  
Annual credits 100,000  
Quarterly installments 5,000,000  
Stock loan revenue 19,249,000 16,172,000
Advertising and promotion costs $ 348,000 $ 155,000
Common stock. Shares authorized (in Shares) 100  
Software [Member]    
Summary of Significant Accounting Policies [Line Items]    
Estimated useful lives, term 5 years  
RISE [Member]    
Summary of Significant Accounting Policies [Line Items]    
Ownership percentage 68.00% 68.00%
Minimum [Member]    
Summary of Significant Accounting Policies [Line Items]    
Leases, term 1 year  
Contra expense, term 1 year  
Expenses from stock borrow/stock loan $ 21,465,000 $ 30,994,000
Maximum [Member]    
Summary of Significant Accounting Policies [Line Items]    
Leases, term 5 years  
Contra expense, term 4 years  
Expenses from stock borrow/stock loan $ 40,714,000 $ 47,166,000