Fair Value of Assets and Liabilities (Details 7) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Dec. 31, 2016
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 165,099	$ 179,219
Minimum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	9.60%
Maximum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	15.21%
Trust preferred securities
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 827	$ 825
Trust preferred securities \| Minimum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	9.60%	9.69%
Trust preferred securities \| Maximum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Fair value input discount rate	15.21%	15.11%
Trust preferred securities \| Discounted Cash Flow
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 827	$ 825
Impaired Loans \| Minimum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Appraisal Adjustments	0.00%	0.00%
Liquidation Expenses	0.00%	0.00%
Impaired Loans \| Maximum
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Appraisal Adjustments	50.00%	50.00%
Liquidation Expenses	48.00%	48.00%
Impaired Loans \| Weighted average
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Appraisal Adjustments	28.00%	29.00%
Liquidation Expenses	5.00%	5.00%
Impaired Loans \| Appraisal Of Collateral
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 5,936	$ 6,788
Other Real Estate Owned
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Appraisal Adjustments	0.00%
Other Real Estate Owned \| Appraisal Of Collateral
Significant unobservable inputs for assets and liabilities measured at fair value on a recurring and nonrecurring basis
Total debt securities, Fair Value	$ 480

Fair value liquidation expenses.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 25
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (aa)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562

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- References

No definition available.

+ Details

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- Definition

Percentage of adjustment to the observed price for a similar asset or liability when an identical transaction does not exist, used as an input to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

+ Details

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