Other Real Estate Owned (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Real Estate Owned
Balance, beginning of year	$ 147,000	$ 326,000	$ 460,000
Acquisitions	0	524,000	326,000
Foreclosures	644,000	15,000	0
Sales	(329,000)	(1,055,000)	(507,000)
Gain (loss) on sale	(20,000)	346,000	47,000
Write downs	(1,000)	(9,000)	0
Balance, end of year	441,000	147,000	$ 326,000
Consumer mortgage loans collateralized by residential real estate, foreclosure proceedings in process	$ 0	$ 0