Business Segment Information - Summary Of Geographic Data (Detail) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Revenues [Abstract]
Revenues	$ 5,592,744	$ 5,504,832	$ 9,742,087	$ 9,845,375
Americas [Member]
Revenues [Abstract]
Revenues	5,558,666	5,490,048	9,697,105	9,827,588
Non-US [Member]
Revenues [Abstract]
Revenues	$ 34,078	$ 14,784	$ 44,982	$ 17,787

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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+ Details