Acquisition Activity - Additional Information (Details) - USD ($) $ in Thousands		12 Months Ended
	Aug. 31, 2018	Dec. 31, 2019	Dec. 31, 2017	Dec. 31, 2018
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, assets, total	$ 167,775
Business combination, recognized identifiable assets acquired and liabilities assumed, loans	154,577
Business combination, recognized identifiable assets acquired and liabilities assumed, deposits	140,375
Goodwill	7,435	$ 7,435		$ 7,400
Business combination, consideration transferred, total	24,398
The Peoples Bank [Member]
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, assets, total	166,531
Business combination, recognized identifiable assets acquired and liabilities assumed, loans	156,772
Business combination, recognized identifiable assets acquired and liabilities assumed, deposits	140,033
Goodwill	$ 7,400			$ 7,400
Assets, fair value adjustment		$ 0
Business acquisition, percentage of voting interests acquired	100.00%
Business combination, consideration transferred, total			$ 23,400
Business combination, deductions multiple	1.62
Business combination, provisional information, initial accounting incomplete, adjustment, consideration transferred	$ 400
Business combination, consideration transferred, percent cash	90.00%
Payments to acquire businesses, gross	$ 20,700
Business combination, consideration transferred, percent equity interests	10.00%
Business acquisition, equity interest issued or issuable, number of shares	204,355
Liabilities, fair value adjustment	$ 1,400