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Capital Requirements (Details) - USD ($) | Jan. 02, 2021 | Dec. 31, 2020 | Jan. 02, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
MSCO [Member] |  |  |  |
Net capital |  | $ 27,500,000 |  | $ 4,400,000
Minimum net capital required |  | 2,300,000 |  | 250,000
Net capital in excess of minimum requirement |  | $ 25,200,000 |  | 4,200,000
Percentage of aggregate debit balance to net capital |  | 24.00% |  |
Cash deposits |  | $ 324,900,000 |  |
Minimum cash deposits required |  | 319,900,000 |  |
Cash deposits in excess of minimum requirement |  | 5,000,000 |  |
MSCO [Member] | Subsequent Event [Member] |  |  |  |
Cash deposits in excess of minimum requirement | $ 1,000,000 |  |  |
StockCross [Member] |  |  |  |
Net capital |  |  |  | 18,800,000
Minimum net capital required |  |  |  | 2,100,000
Net capital in excess of minimum requirement |  |  |  | $ 16,700,000
Percentage of aggregate debit balance to net capital |  |  |  | 18.00%
Cash deposits |  |  |  | $ 222,100,000
Minimum cash deposits required |  |  |  | 219,400,000
Cash deposits in excess of minimum requirement |  |  | $ 1,000,000 | 4,000,000
Fair value of Securities on Deposit |  |  |  | 1,300,000
Segregated cash |  |  |  | 1,400,000
StockCross [Member] | Special Reserve Account [Member] |  |  |  |
Deposits |  |  |  | 223,400,000
Cash deposits in excess of minimum requirement |  |  | $ 218,000 |
Segregated cash |  |  |  | 1,400,000
Minimum cash deposit requirement |  |  |  | 1,700,000
Cash deposits in deficit of minimum requirement |  |  |  | 282,000
Weeden Prime Services LLC [Member] |  |  |  |
Net capital |  | 3,900,000 |  | 3,700,000
Minimum net capital required |  | $ 250,000 |  | 250,000
Special reserve bank account |  |  |  | $ 110,000

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