Premises and Equipment - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Depreciation and amortization	$ 466,000	$ 636,000	$ 933,000	$ 1,239,000
Property, plant and equipment, gross	30,957,000		30,957,000		$ 31,382,000
Leasehold Improvements
Property Plant And Equipment [Line Items]
Increase (decrease) in property, plant and equipment			470,000
Property, plant and equipment, gross	15,992,000		15,992,000		16,462,000
Furniture, Fixtures and Equipment
Property Plant And Equipment [Line Items]
Increase (decrease) in property, plant and equipment			45,000
Property, plant and equipment, gross	9,706,000		9,706,000		$ 9,661,000
Property, plant and equipment, additions			235,000
Offset Improvement
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 190,000		$ 190,000