Leases (Details) $ in Thousands	Sep. 30, 2024 USD ($) renewalOption tenant	Dec. 31, 2023 USD ($)
Lessee, Lease, Description [Line Items]
Lessor, number of tenants | tenant	2
Right-of-use asset	$ 2,047	$ 2,183
Lease liability	$ 2,205	$ 2,318
Yonkers, NY | Ground Lease
Lessee, Lease, Description [Line Items]
Number of renewals remaining | renewalOption	0
Remaining term	20 years 9 months 18 days
Great Neck, NY | Corporate Office
Lessee, Lease, Description [Line Items]
Remaining term	12 years 3 months 18 days
Renewal term option	5 years
Maximum
Lessee, Lease, Description [Line Items]
Operating leases, term of contract (generally)	1 year