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Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Commitments to extend credit
Commitments and Contingencies
Commitments to extend credit	$ 306,342	$ 259,415
Undisbursed lines of credit
Commitments and Contingencies
Commitments to extend credit	304,547	257,557
Undisbursed portions of construction loans
Commitments and Contingencies
Commitments to extend credit	81,439	43,208
Standby letters of credit and financial guarantees
Commitments and Contingencies
Commitments to extend credit	$ 1,795	1,858
Minimum | Undisbursed lines of credit
Commitments and Contingencies
Commitments to extend credit, term of agreement	1 month
Maximum | Undisbursed lines of credit
Commitments and Contingencies
Commitments to extend credit, term of agreement	12 months
Maximum | Standby letters of credit and financial guarantees
Commitments and Contingencies
Commitments to extend credit, term of agreement	1 year
Probable loan loss experience on unfunded obligations [Member]
Commitments and Contingencies
Estimate of possible loss	$ 200	$ 125

X

- Definition

Commitments to Extend Credit, Term of Agreement

+ References

No definition available.

+ Details

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X

- Definition

Off-balance Sheet Commitments [Line Items]

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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X

- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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