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Revenue Recognition (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Revenue Recognition [Abstract] |  |
U.S. government securities portfolio | $ 3.9 |
Stock borrow / stock loan | 3,442,000 | $ 3,578,000
Gross revenue from stock borrow/ Stock loan | 9,776,000 | 7,465,000
Expenses from stock borrow/stock loan | $ 6,334,000 | $ 3,887,000

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- Definition Unrealized loss on portfolio of U.S. government securities, year over year decrease. + References No definition available. + Details
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- Definition Gross revenue from stock borrow/ Stock loan. + References No definition available. + Details
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