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Allowance for Loan Losses - Residential and consumer portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	$ 872,649	$ 882,706
Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	248,162	253,494
Residential Mortgage
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	230,207	235,239
Residential Mortgage | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	230,207	235,239
Consumer [Member]
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	17,955	18,255
Consumer [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	17,955	18,255
Performing [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	246,758	252,015
Performing [Member] | Residential Mortgage | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	228,803	233,760
Performing [Member] | Consumer [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	17,955	18,255
Non-Performing [Member] | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	1,404	1,479
Non-Performing [Member] | Residential Mortgage | Consumer
Performing and non-performing outstanding balances of the residential and consumer portfolios
Loan portfolio	$ 1,404	$ 1,479

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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=118952595&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=118936363&loc=d3e5074-111524

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