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Capital Requirements (Details) - USD ($)
Apr. 03, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 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   $ 31,800,000    
Net capital in excess amount     $ 1,400,000  
Reserve account excess amount     11,900,000  
Excess deposit requirements amount   1,200,000 264,300,000  
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   10,000.00    
MSCO [Member]        
Capital Requirements (Details) [Line Items]        
Net capital   $ 33,200,000    
Percentage of aggregate debit balance to net capital   47.09%    
Net capital in excess of minimum requirement     29,200,000  
Minimum net capital required   $ 1,400,000    
Net capital in excess amount     30,600,000  
Cash and securities deposits   254,400,000 276,200,000  
Cash deposits in excess of minimum requirement   58,500,000 135,200,000  
Minimum cash deposits required   195,900,000 141,000,000  
Reserve account excess amount   22,200,000    
Excess deposit requirements amount   $ 232,200,000    
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     1,200,000 1,300,000
RISE [Member] | Minimum [Member]        
Capital Requirements (Details) [Line Items]        
Net capital in excess amount     $ 900,000 $ 1,000,000