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Allowance for Loan Losses - Residential and consumer portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	$ 941,780	$ 882,706
Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	251,007	253,494
Real estate-residential mortgage | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	233,811	235,239
Consumer [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	17,196	18,255
Performing [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	249,311	252,015
Performing [Member] | Real estate-residential mortgage | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	232,115	233,760
Performing [Member] | Consumer [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	17,196	18,255
Non-Performing [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	1,696	1,479
Non-Performing [Member] | Real estate-residential mortgage | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	1,696	1,479
Non-Performing [Member] | Consumer [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	$ 0	$ 0

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- Definition

Loan portfolio classified as performance and nonperformance.

+ References

No definition available.

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524

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