Annual report pursuant to Section 13 and 15(d)

RELATED PARTY TRANSACTIONS (Details)

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RELATED PARTY TRANSACTIONS (Details) - USD ($)
1 Months Ended 12 Months Ended
Jul. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2020
Fair Value, Separate Account Investment [Line Items]        
Commission income   $ 291,163,000 $ 184,725,000 $ 56,247,000
Proportion of fee and commission income to related party commission income   94.00% 34.00% 86.00%
Commission expenses   $ 16,307,000 $ 20,291,000 $ 3,668,000
Proportion of related party commission expense to related party commission expense   58.00% 15.00% 80.00%
Interest Income, Related Party   $ 10,191 $ 2,250,000  
Loans issued to related parties   $ 1,329,000 $ 0  
Cash and cash equivalents due to wisdompoint capital LTD   100.00% 100.00%  
Bank commission receivables form brokerage client from related parties   $ 244,000 $ 960,000  
Margin lending receivables   $ 107,649,000 $ 9,866,000  
Margin lending receivables due from FFIN brokerage   95.00% 83.00%  
Lending payables   $ 38,889,000 $ 13,810,000  
Margin lending payables due to wisdompoint capital LTD   100.00% 100.00%  
Accounts payable due to a related party   $ 313,000 $ 299,000  
Customer liabilities on brokerage and bank accounts   $ 325,904,000 $ 235,460,000  
Customer liabilities related to deposits from FFIN brokerage   75.00% 126.00%  
Restricted customer cash deposits related to customers of FFIN brokerage   78.00% 94.00%  
Payments to acquire loans classified as operating activities   $ (59,839,000)    
Proceeds from sale of securities, operating activities   $ 12,107,000    
Ownership interest sold during the period 23.88%      
Proceeds from Issuance or sale of equity $ 416,000      
FFIN Brokerage Services, Inc.        
Fair Value, Separate Account Investment [Line Items]        
Percentage Of Interest Income, Related Party   100.00% 100.00%  
Brokerage accounts        
Fair Value, Separate Account Investment [Line Items]        
Cash and cash equivalents   $ 22,787,000 $ 12,237,000  
Financial liability due to a related party   1,637,000 1,707,000  
Restricted customer cash   $ 222,651,000 $ 156,878,000