| Schedule of Related Party Transactions | Related party transactions as of December 31, 2024 and March 31, 2024, consisted of the following: 
 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | December 31, 2024 |  | March 31, 2024 |  
|  | Related party balances |  | Total category as per financial statements captions |  | Related party balances |  | Total category as per financial statements captions |  
| ASSETS |  |  |  |  |  |  |  |  
| Cash and cash equivalents | $ | 50 |  |  | $ | 577,940 |  |  | $ | 203 |  |  | $ | 545,084 |  |  
| Companies controlled by management | 50 |  |  |  |  | 203 |  |  |  |  
| Restricted cash | $ | 3,198 |  |  | $ | 742,153 |  |  | $ | — |  |  | $ | 462,637 |  |  
| Management | 1,924 |  |  |  |  | — |  |  |  |  
| Companies controlled by management | 1,234 |  |  |  |  | — |  |  |  |  
| Other | 40 |  |  |  |  | — |  |  |  |  
| Trading securities | $ | 1,128 |  |  | $ | 3,415,517 |  |  | $ | 1,326 |  |  | $ | 3,688,620 |  |  
| Companies controlled by management | 1,128 |  |  |  |  | 1,326 |  |  |  |  
| Margin lending, brokerage and other receivables, net | $ | 22,391 |  |  | $ | 2,037,673 |  |  | $ | 22,039 |  |  | $ | 1,660,275 |  |  
| Management | 9,508 |  |  |  |  | 8,849 |  |  |  |  
| Companies controlled by management | 12,883 |  |  |  |  | 13,190 |  |  |  |  
| Loans issued | $ | 139,514 |  |  | $ | 1,454,259 |  |  | $ | 147,440 |  |  | $ | 1,381,715 |  |  
| Management | 335 |  |  |  |  | 117 |  |  |  |  
| Companies controlled by management | 139,179 |  |  |  |  | 147,323 |  |  |  |  
| Other assets, net | $ | 16,294 |  |  | $ | 171,040 |  |  | $ | 5,257 |  |  | $ | 102,414 |  |  
| Companies controlled by management | 16,294 |  |  |  |  | 5,257 |  |  |  |  
| LIABILITIES |  |  |  |  |  |  |  |  
| Customer liabilities | $ | 51,017 |  |  | $ | 3,783,291 |  |  | $ | 44,127 |  |  | $ | 2,273,830 |  |  
| Management | 7,566 |  |  |  |  | 12,604 |  |  |  |  
| Companies controlled by management | 42,330 |  |  |  |  | 31,253 |  |  |  |  
| Other | 1,121 |  |  |  |  | 270 |  |  |  |  
| Other liabilities | $ | 157 |  |  | $ | 132,007 |  |  | $ | 9,854 |  |  | $ | 81,560 |  |  
| Management | 104 |  |  |  |  | 7,947 |  |  |  |  
| Companies controlled by management | 52 |  |  |  |  | 1,907 |  |  |  |  
| Other | 1 |  |  |  |  | — |  |  |  |  
|  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Three Months Ended December 31, 2024 |  | Three Months Ended December 31, 2023 |  
|  | Related party amounts |  | Total category as per financial statements captions |  | Related party amounts |  | Total category as per financial statements captions |  
| Revenue: |  |  |  |  |  |  |  |  
| Fee and commission income | $ | 556 |  |  | $ | 143,436 |  |  | $ | 30,112 |  |  | $ | 120,159 |  |  
| Management | 197 |  |  |  |  | 226 |  |  |  |  
| Companies controlled by management | 357 |  |  |  |  | 29,878 |  |  |  |  
| Other | 2 |  |  |  |  | 8 |  |  |  |  
| Interest income | $ | 380 |  |  | $ | 224,688 |  |  | $ | 7,566 |  |  | $ | 226,445 |  |  
| Management | 224 |  |  |  |  | 208 |  |  |  |  
| Companies controlled by management | 156 |  |  |  |  | 7,358 |  |  |  |  
| Expense: |  |  |  |  |  |  |  |  
| General and administrative expense | $ | 7,892 |  |  | $ | 73,437 |  |  | $ | 1,502 |  |  | $ | 32,106 |  |  
| Management | 34 |  |  |  |  | 226 |  |  |  |  
| Companies controlled by management | 7,858 |  |  |  |  | 1,041 |  |  |  |  
| Other | — |  |  |  |  | 235 |  |  |  |  
|  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  | 
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
|  | Nine Months Ended December 31, 2024 |  | Nine Months Ended December 31, 2023 |  
|  | Related party amounts |  | Total category as per financial statements captions |  | Related party amounts |  | Total category as per financial statements captions |  
| Revenue: |  |  |  |  |  |  |  |  
| Fee and commission income | 2,259 |  |  | 379,976 |  |  | 66,029 |  |  | 330,565 |  |  
| Management | 706 |  |  |  |  | 691 |  |  |  |  
| Companies controlled by management | 1,545 |  |  |  |  | 65,322 |  |  |  |  
| Other | 8 |  |  |  |  | 16 |  |  |  |  
| Interest income | 1,023 |  |  | 661,016 |  |  | 22,650 |  |  | 588,857 |  |  
| Management | 643 |  |  |  |  | 512 |  |  |  |  
| Companies controlled by management | 380 |  |  |  |  | 22,137 |  |  |  |  
| Expense: |  |  |  |  |  |  |  |  
| General and administrative expense | 16,864 |  |  | 171,782 |  |  | 9,063 |  |  | 86,211 |  |  
| Management | 311 |  |  |  |  | 397 |  |  |  |  
| Companies controlled by management | 16,553 |  |  |  |  | 8,346 |  |  |  |  
| Other | — |  |  |  |  | 320 |  |  |  |  
|  |  |  |  |  |  |  |  |  
|  |  |  |  |  |  |  |  |  |