Leases - Classification of Company's ROU assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets And Liabilities Lessee [Abstract]
Operating lease right-of-use assets	$ 1,830	$ 1,636
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Operating lease liabilities	$ 1,911	$ 1,720
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Accrued interest payable and other liabilities	Accrued interest payable and other liabilities