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Investment Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Schedule of Investments [Line Items]
Available for sale Securities, Amortized Cost, Due after 1 year but within 5 years	$ 25,285
Available for sale Securities, Amortized Cost, Due after 5 years but within 10 years	43,070
Available for sale Securities, Amortized Cost, Due after 10 years	7,807
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total	76,162
Available-for-sale debt securities, Amortized Cost	116,027	$ 95,648
Available for sale Securities, Fair Value, Due after 1 year but within 5 years	24,732
Available for sale Securities, Fair Value, Due after 5 years but within 10 years	41,027
Available for sale Securities, Fair Value, Due after 10 years	7,315
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Fair Value, Total	73,074
Available for sale Securities, Fair Value	111,923	92,959
Held-to-maturity, Due in 1 year or less, Amortized Cost	1,086
Held-to-maturity, Due after 1 year through 5 years, Amortized Cost	18,745
Held-to-maturity, Due after 5 years through 10 years, Amortized Cost	82,727
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis	102,558
Held-to-maturity debt securities, Amortized Cost	168,370	101,356
Held-to-maturity, Due in 1 year or less, Fair Value	1,087
Held-to-maturity, Due after 1 year through 5, Fair Value	18,597
Held-to-maturity, Due after 5 years through 10 years, Fair Value	82,350
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value	102,034
Held-to-maturity, Fair Value	166,582	$ 100,483
Mortgage-backed securities [Member]
Schedule of Investments [Line Items]
Available for sale Securities without a Single Maturity Date, Amortized Cost	39,865
Available for sale securities without a Single Maturity Date, Fair Value	38,849
Held-to-maturity without Single Maturity Date, Amortized Cost	65,812
Held-to-maturity without Single Maturity Date, Fair Value	$ 64,548

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Period Type:	instant

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- Definition

Amortized cost of investment in debt security measured at amortized cost (held-to-maturity), without single maturity date and not allocated over maturity grouping.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

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Period Type:	instant

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- Definition

Fair value of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27232-111563

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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