Net Capital Requirements - Additional Information (Details) $ in Thousands	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
KBD LLC
Net Capital Requirements [Line Items]
Net capital	$ 107	$ 40
Required net capital	102	35
Excess in required net capital	$ 5	$ 5
Net capital ratio	0.977	1.79
KFD LLC
Net Capital Requirements [Line Items]
Net capital	$ 1,546	$ 1,435
Required net capital	1,521	1,410
Excess in required net capital	$ 25	$ 25
Net capital ratio	0.013	0.025

Net capital requirements.

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Amount of net capital in excess of minimum required net capital, calculated under Alternative Standard.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Rule 15c3-1
-Number 240
-Section 15c3-1
-Publisher SEC

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Minimum amount of net capital of broker-dealer and its subsidiary, calculated under Alternative Standard.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Rule 15c3-1
-Number 240
-Section 15c3-1
-Publisher SEC

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Amount of net capital of broker-dealer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Rule 15c3-1
-Number 240
-Section 15c3-1
-Publisher SEC

Indebtedness divided by net capital.

No definition available.

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