Deposits - Narrative (Details) bank in Thousands	Dec. 31, 2017 USD ($) bank	Dec. 31, 2016 USD ($)
Deposits [Line Items]
Certificates of deposit	$ 100,527,000
CD collateralized by FHLB letters of credit	0	$ 0
Securities pledged to collateralize certificates of deposit	0	0
Deposits held for related parties	$ 2,500,000	2,500,000
CDARS
Deposits [Line Items]
Number of banks in, more than \| bank	3
Percentage of coverage of certificates of deposit in CDARS	100.00%
Certificates of deposit	$ 0	$ 0

Certificates of Deposits, Collateralized by Federal Home Loan Bank Letters of Credit

No definition available.

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- Definition

[Line Items] for Deposits [Table]

+ References

No definition available.

+ Details

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- Definition

Number of banks in Certificate Of Deposit Account Registry System.

+ References

No definition available.

+ Details

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- Definition

Percentage of coverage of certificates of deposit in Certificate Of Deposit Account Registry System.

+ References

No definition available.

+ Details

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- Definition

Amount of securities, mortgage loans, or other financial instruments pledged as collateral for deposits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=50488274&loc=d3e64164-112818

+ Details

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- Definition

Amount of interest-bearing domestic certificate of deposit liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

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- Definition

Amount of deposits held by the entity for a related party (entity, shareholder, employee).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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