Leases - Lessee Accounting (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2023 USD ($) tenant renewalOption	Mar. 31, 2023 renewalOption	Dec. 31, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Lessor, number of tenants | tenant	2
Right-of-use asset	$ 2,276		$ 2,371
Lease liability	$ 2,394		$ 2,472
Ground Lease | Yonkers, NY
Lessee, Lease, Description [Line Items]
Number of renewal options | renewalOption	0	1
Renewal term option		21 years
Remaining term	22 years
Corporate Office | Great Neck, NY
Lessee, Lease, Description [Line Items]
Renewal term option	5 years
Remaining term	13 years 6 months