Other Real Estate Owned - Changes in Other Real Estate Owned (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Banking and Thrift [Abstract]
Mortgage Loans in Process of Foreclosure, Amount	$ 0
Changes in other real estate owned
Balance at the beginning of the year	1,983,000	$ 0	$ 754,000
Additions	0	434,000	32,000
Additions from acquisitions	0	1,796,000	0
Proceeds from dispositions	(864,000)	(198,000)	(930,000)
(Loss) gain on sale, net	(227,000)	0	144,000
Valuation adjustment	(51,000)	(49,000)	0
Balance at the end of the year	$ 841,000	$ 1,983,000	$ 0