Borrowings (Scheduled Maturity and Interest Rates for FHLB Advances) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Outstanding amount	$ 135,000	$ 189,000
Maturity Date on 3/13/2018 [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 13, 2018
Interest rate	1.47%
Outstanding amount	$ 65,000
Maturity Date on 3/27/2018 [Member]
Debt Instrument [Line Items]
Maturity date	Mar. 27, 2018
Interest rate	1.22%
Outstanding amount	$ 10,000
Maturity Date on 10/2/2018 [Member]
Debt Instrument [Line Items]
Maturity date	Oct. 02, 2018
Interest rate	1.02%
Outstanding amount	$ 10,000
Maturity Date on 11/26/2018 [Member]
Debt Instrument [Line Items]
Maturity date	Nov. 26, 2018
Interest rate	1.43%
Outstanding amount	$ 10,000
Maturity Date on 4/4/2019 [Member]
Debt Instrument [Line Items]
Maturity date	Apr. 04, 2019
Interest rate	1.13%
Outstanding amount	$ 20,000
Maturity Date on 10/2/2019 [Member]
Debt Instrument [Line Items]
Maturity date	Oct. 02, 2019
Interest rate	1.32%
Outstanding amount	$ 10,000
Maturity Date on 10/2/2020 [Member]
Debt Instrument [Line Items]
Maturity date	Oct. 02, 2020
Interest rate	1.54%
Outstanding amount	$ 10,000

The date of maturity, for the advances from the Federal Home Loan Bank as of the Balance Sheet date.

No definition available.

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- Definition

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

+ Details

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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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- Definition

Interest rate of advances made and reported by Federal Home Loan Bank (FHLBank).

+ References

No definition available.

+ Details

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