Loans and Allowance for Loan Losses (Details 8) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	$ 14,643	$ 12,259	$ 13,084
Recognized interest income	812	640	733
Commercial [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	9,002	8,482	8,527
Recognized interest income	558	462	478
Commercial [Member] | Owner occupied RE [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,423	2,739	2,784
Recognized interest income	88	128	142
Commercial [Member] | Non-owner occupied RE [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	4,217	4,161	2,860
Recognized interest income	221	255	174
Commercial [Member] | Business [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,306	1,582	2,883
Recognized interest income	243	79	162
Commercial [Member] | Construction [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	56
Recognized interest income	6
Consumer [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	5,641	3,777	4,557
Recognized interest income	254	178	255
Consumer [Member] | Other [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	141	153	174
Recognized interest income	79	5	5
Consumer [Member] | Construction [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment
Recognized interest income
Consumer [Member] | Real estate [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	3,372	2,771	2,930
Recognized interest income	170	131	151
Consumer [Member] | Home equity [Member]
Average recorded investment and interest income recognized on impaired loans
Average recorded investment	2,128	853	1,453
Recognized interest income	$ 5	$ 42	$ 99