Regulatory (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financial Instruments Owned and Pledged as Collateral [Line Items]
Net capital	$ 14,000	$ 12,400
Net capital in excess of required net capital	13,600	12,200
Required net capital	400	300
Restricted cash	1,062	1,829	$ 1,623
Asset Pledged as Collateral
Financial Instruments Owned and Pledged as Collateral [Line Items]
Restricted cash	$ 1,100	$ 1,000