Commitments and Contingencies (Details) - Commitments to extend credit - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2018	Dec. 31, 2017
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheets risks, liability	$ 134	$ 201
Off-balance sheet risks, expiration period, liability	1 year	1 year
Minimum
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, interest rate, liability	2.99%	2.99%
Maximum
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks, interest rate, liability	5.00%	5.00%

The fair value of financial liabilities, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

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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

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- Definition

Fair Value Disclosure, Off-Balance Sheet Risks, Interest Rate, Liability

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- Definition

Fair Value Disclosure, Off-Balance Sheet Risks, Liability, Expiration Period

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