Loans - Collateral Dependent Loans (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Loans
Collateral dependent loans	$ 14,750	$ 21,847
Collateral Coverage	21,913	46,256
Commercial non-owner occupied | Church
Loans
Collateral dependent loans		245
Collateral Coverage		$ 846
Collateral Coverage (as a percent)		345.00%
Commercial non-owner occupied | Office
Loans
Collateral dependent loans	2,683	$ 1,045
Collateral Coverage	$ 3,654	$ 1,800
Collateral Coverage (as a percent)	136.00%	172.00%
Commercial non-owner occupied | Other
Loans
Collateral dependent loans		$ 398
Collateral Coverage		$ 648
Collateral Coverage (as a percent)		163.00%
Commercial non-owner occupied | Retail
Loans
Collateral dependent loans		$ 299
Collateral Coverage		$ 1,269
Collateral Coverage (as a percent)		424.00%
Commercial owner occupied real estate loan | Church
Loans
Collateral dependent loans	$ 1,943
Collateral Coverage	$ 1,984
Collateral Coverage (as a percent)	102.00%
Commercial owner occupied real estate loan | Industrial
Loans
Collateral dependent loans		$ 738
Collateral Coverage		$ 1,103
Collateral Coverage (as a percent)		149.00%
Commercial owner occupied real estate loan | Office
Loans
Collateral dependent loans	$ 2,389	$ 1,076
Collateral Coverage	$ 3,510	$ 1,485
Collateral Coverage (as a percent)	147.00%	138.00%
Commercial owner occupied real estate loan | Other
Loans
Collateral dependent loans	$ 1,050	$ 3,303
Collateral Coverage	$ 1,075	$ 7,285
Collateral Coverage (as a percent)	102.00%	221.00%
Commercial owner occupied real estate loan | Retail
Loans
Collateral dependent loans	$ 4,327
Collateral Coverage	$ 5,490
Collateral Coverage (as a percent)	127.00%
Consumer Owner Occupied Loans | Other
Loans
Collateral dependent loans		$ 5,413
Collateral Coverage		$ 9,286
Collateral Coverage (as a percent)		172.00%
Home equity loans | Other
Loans
Collateral dependent loans	$ 1,178	$ 1,768
Collateral Coverage	$ 1,578	$ 2,679
Collateral Coverage (as a percent)	134.00%	152.00%
Commercial and industrial | Industrial
Loans
Collateral dependent loans		$ 291
Collateral Coverage		$ 702
Collateral Coverage (as a percent)		241.00%
Commercial and industrial | Other
Loans
Collateral dependent loans		$ 3,696
Collateral Coverage		$ 8,442
Collateral Coverage (as a percent)		228.00%
Other income producing property | Other
Loans
Collateral dependent loans	$ 1,180	$ 3,212
Collateral Coverage	$ 4,622	$ 10,186
Collateral Coverage (as a percent)	392.00%	317.00%
Consumer | Other
Loans
Collateral dependent loans		$ 363
Collateral Coverage		$ 525
Collateral Coverage (as a percent)		145.00%