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Allowance for Loan Losses - Loan loss by the primary segments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans:
Individually evaluated for impairment	$ 2,582	$ 855
Collectively evaluated for impairment	982,667	971,240
Total loans	985,249	972,095
Allowance for loan losses:
Specific reserve allocation	480	104
General reserve allocation	11,151	11,241
Total allowance for loan losses	11,631	11,345	$ 9,334	$ 9,279
Commercial loans secured by non-owner occupied real estate
Loans:
Total loans	407,432	400,751
Real estate-residential mortgage
Loans:
Total loans	255,319	249,989
Consumer.
Loans:
Total loans	16,085	16,363
Allocation for General Risk [Member]
Loans:
Individually evaluated for impairment	0
Collectively evaluated for impairment	0
Total loans	0
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	1,161	1,093
Total allowance for loan losses	1,161	1,093	925	924
Commercial
Loans:
Total loans	713,845	705,743
Commercial | Commercial.
Loans:
Individually evaluated for impairment	2,574	847
Collectively evaluated for impairment	303,839	304,145
Total loans	306,413	304,992
Allowance for loan losses:
Specific reserve allocation	472	96
General reserve allocation	3,100	3,376
Total allowance for loan losses	3,572	3,472	3,860	3,951
Commercial | Commercial loans secured by non-owner occupied real estate
Loans:
Individually evaluated for impairment	8	8
Collectively evaluated for impairment	407,424	400,743
Total loans	407,432	400,751
Allowance for loan losses:
Specific reserve allocation	8	8
General reserve allocation	5,440	5,365
Total allowance for loan losses	5,448	5,373	3,288	3,119
Consumer
Loans:
Total loans	271,404	266,352
Consumer | Real estate-residential mortgage
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	255,319	249,989
Total loans	255,319	249,989
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	1,329	1,292
Total allowance for loan losses	1,329	1,292	1,141	1,159
Consumer | Consumer.
Loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	16,085	16,363
Total loans	16,085	16,363
Allowance for loan losses:
Specific reserve allocation	0	0
General reserve allocation	121	115
Total allowance for loan losses	$ 121	$ 115	$ 120	$ 126

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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