Concentrations of Credit Risk (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Concentration Risk [Line Items]
Loans secure to total loans portfolio	$ 1,152,020	$ 992,924
Credit Concentration Risk
Concentration Risk [Line Items]
Percentage of concentrations of loans to any individual, group of individuals, business, or industry	10.00%	10.00%
Real Estate \| Credit Concentration Risk
Concentration Risk [Line Items]
Loans secure to total loans portfolio	$ 951,073	$ 822,037
Percentage of loans secure to total loans portfolio	81.60%	81.80%
Commercial Real Estate \| Credit Concentration Risk
Concentration Risk [Line Items]
Loans secure to total loans portfolio	$ 510,960	$ 430,186
Percentage of loans secure to total loans portfolio	43.90%	42.80%
Nonresidential Buildings \| Credit Concentration Risk
Concentration Risk [Line Items]
Percentage of loans secure to total loans portfolio	20.20%	18.70%

Represents concentrations of loans to any individual, group of individuals, business, or industry that exceeded total loans.

No definition available.

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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.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Subparagraph (SX 210.9-03.7)
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