Floating rate trust preferred securities outstanding during period.

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Maximum value for classification as small bank holding company.

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- Definition

Regulatory Matters (Textual) [Abstract]

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- Definition

Total Capital divided by risk weighted assets as defined in the regulations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 505
-Section 50
-Paragraph 1H
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=84167132&loc=d3e65071-112826

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-Name Accounting Standards Codification
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-SubTopic 505
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=84167132&loc=SL5958568-112826

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The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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The Tier 1 capital ratio (Tier 1 capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.

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Tier 1 capital divided by risk weighted assets as defined by regulations.

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Regulatory Matters (Details Textual) - USD ($)	12 Months Ended
Regulatory Matters (Details Textual) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2013
Regulatory Matters (Textual) [Abstract]
Minimum Tier I risk-based capital to risk-weighted assets ratio	6.00%	6.00%
Minimum total risk-based capital to risk-weighted assets ratio	13.35%	14.04%
Ratio to risk-weighted assets	14.26%	15.10%
Maximum value for classification as small bank holding company	$ 1,000,000,000
Floating rate trust preferred securities outstanding	$ 5,000,000	$ 5,000,000
CET1
Regulatory Matters (Textual) [Abstract]
Minimum Tier I risk-based capital to risk-weighted assets ratio			4.50%
Minimum Tier I risk-based capital to average assets ratio			2.50%
Minimum total risk-based capital to risk-weighted assets ratio			7.00%
Basel III
Regulatory Matters (Textual) [Abstract]
Minimum Tier I risk-based capital to risk-weighted assets ratio			8.50%
Minimum Tier I risk-based capital to average assets ratio			10.50%
Minimum total risk-based capital to risk-weighted assets ratio			4.00%
Basel III \| Minimum
Regulatory Matters (Textual) [Abstract]
Ratio to risk-weighted assets			4.00%
Basel III \| Maximum
Regulatory Matters (Textual) [Abstract]
Ratio to risk-weighted assets			6.00%