Loans Narrative Data (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($) loan	Sep. 30, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Receivables [Abstract]
Number of PPP loans | loan	718	718
Total amount of PPP loans	$ 69,800	$ 69,800
Total origination fees on PPP loans	2,500	2,500
Origination fees recognized on PPP loans	311	545
PPP loans pledged as collateral	2,300	2,300
Loans pledged as collateral	$ 207,900	$ 207,900	$ 207,700
Number of residential real estate loans in process of foreclosure | loan	0	0	2
Recorded investment in residential real estate loans in process of foreclosure			$ 64
Aggregate interest on nonaccrual loans not recognized		$ 371	$ 271