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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2022
Fair Value Disclosures [Abstract]  
Schedule of estimated fair values

As of December 31, 2022

Level 1

Level 2

Level 3

Total

Assets

Cash and securities segregated for regulatory purposes

U.S. government securities

$

140,978,000

$

$

$

140,978,000

 

Securities owned, at fair value

U.S. government securities

$

2,808,000

$

$

$

2,808,000

Certificates of deposit

92,000

92,000

Municipal securities

52,000

52,000

Corporate bonds

7,000

7,000

Equity securities

63,000

182,000

245,000

Total Securities owned, at fair value

$

2,871,000

$

333,000

$

$

3,204,000

  

Liabilities

Securities sold, not yet purchased, at fair value

Equity securities

$

2,000

$

$

$

2,000

Total Securities sold, not yet purchased, at fair value

$

2,000

$

$

$

2,000

 

As of December 31, 2021

Level 1

Level 2

Level 3

Total

Assets

Securities owned, at fair value

U.S. government securities*

$

2,966,000

$

$

$

2,966,000

Certificates of deposit

91,000

91,000

Corporate bonds

12,000

12,000

Equity securities

489,000

433,000

922,000

Total Securities owned, at fair value

$

3,455,000

$

536,000

$

$

3,991,000

 

Liabilities

Securities sold, not yet purchased, at fair value

Equity securities

$

$

24,000

$

$

24,000

Total Securities sold, not yet purchased, at fair value

$

$

24,000

$

$

24,000

*As of December 31, 2021, the U.S. government securities had a maturity date of August 15, 2024.

Schedule of U.S. government securities with the below market values and maturity dates

As of

December 31,

2022

Market value of U.S. government securities

Maturing 03/23/2023, 3.750% Discount Rate

$

24,768,000

Maturing 05/18/2023, 2.700% Discount Rate

9,831,000

Maturing 08/31/2023, 1.375% Coupon Rate

9,777,000

Maturing 12/31/2023, 0.750% Coupon Rate

62,497,000

Maturing 01/31/2024, 0.875% Coupon Rate

23,995,000

Maturing 05/31/2024, 2.500% Coupon Rate

9,707,000

Maturing 08/15/2024, 0.375% Coupon Rate

2,808,000

Accrued interest

404,000

Total Market value of investment in U.S. government securities

$

143,787,000

Schedule of estimated fair values

As of December 31,

2022

2021

Equity method investment in related party

$

2,584,000

$