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Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | $ 19,475,000 | $ 21,385,000
Total Securities sold, not yet purchased, at fair value | 7,000 | 26,000
Level 1 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 18,936,000 | 21,199,000
Total Securities sold, not yet purchased, at fair value | 7,000 | 26,000
Level 2 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 539,000 | 186,000
Total Securities sold, not yet purchased, at fair value |  |
Level 3 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Total Securities sold, not yet purchased, at fair value |  |
U.S. Government Securities [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Cash and securities segregated for regulatory purposes | 44,837,000 | 68,758,000
Securities owned, at fair value | 16,631,000 | 20,086,000
U.S. Government Securities [Member] | Level 1 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Cash and securities segregated for regulatory purposes | 44,837,000 | 68,758,000
Securities owned, at fair value | 16,631,000 | 20,086,000
U.S. Government Securities [Member] | Level 2 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Cash and securities segregated for regulatory purposes |  |
Securities owned, at fair value |  |
U.S. Government Securities [Member] | Level 3 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Cash and securities segregated for regulatory purposes |  |
Securities owned, at fair value |  |
Certificates of Deposit [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 112,000 | 112,000
Certificates of Deposit [Member] | Level 1 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Certificates of Deposit [Member] | Level 2 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 112,000 | 112,000
Certificates of Deposit [Member] | Level 3 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Municipal Securities [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 325,000 |
Municipal Securities [Member] | Level 1 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Municipal Securities [Member] | Level 2 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 325,000 |
Municipal Securities [Member] | Level 3 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Equity Securities [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 2,407,000 | 1,127,000
Total Securities sold, not yet purchased, at fair value |  | 1,000
Equity Securities [Member] | Level 1 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 2,305,000 | 1,055,000
Total Securities sold, not yet purchased, at fair value |  | 1,000
Equity Securities [Member] | Level 2 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value | 102,000 | 72,000
Total Securities sold, not yet purchased, at fair value |  |
Equity Securities [Member] | Level 3 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Total Securities sold, not yet purchased, at fair value |  |
Options [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  | 58,000
Total Securities sold, not yet purchased, at fair value | 7,000 | 25,000
Options [Member] | Level 1 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  | 58,000
Total Securities sold, not yet purchased, at fair value | 7,000 | 25,000
Options [Member] | Level 2 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Total Securities sold, not yet purchased, at fair value |  |
Options [Member] | Level 3 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Total Securities sold, not yet purchased, at fair value |  |
Corporate Bonds [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  | 2,000
Corporate Bonds [Member] | Level 1 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |
Corporate Bonds [Member] | Level 2 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  | 2,000
Corporate Bonds [Member] | Level 3 [Member] |  |
Schedule of Financial Assets and Liabilities Measured at Fair Value [Line Items] |  |
Securities owned, at fair value |  |

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