Fair Value (Details Textual) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Impaired Financing Receivable, Recorded Investment	$ 7,791,000	$ 10,718,000
Impaired Financing Receivables, Provisional Expenses	3,000,000	3,200,000
Mortgage Servicing Rights at Fair Value	1,034,000fdef_MortgageServicingRightsAtFairValue	1,370,000fdef_MortgageServicingRightsAtFairValue
Valuation Allowance of Mortgage Servicing Rights	911,000	1,000,000
Proceeds from Collection of Loans Receivable	116,000	1,300,000
Real Estate Held-for-sale, Increase (Decrease) in Fair Value	251,000	740,000
Trust preferred stock transferred from level 3 to level		1,654,000
Impaired Financing Receivable, Related Allowance	1,273,000	1,392,000
Minimum [Member] \| Real Estate held for sale [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Fair Value Inputs, Discount Rate	0.00%
Maximum [Member] \| Real Estate held for sale [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Fair Value Inputs, Discount Rate	20.00%
Collateral dependent loans [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Line Items]
Impaired Financing Receivable, Recorded Investment	7,800,000	10,700,000
Impaired Financing Receivable, Related Allowance	$ 19,000

The provisional expenses recorded for impaired financing receivables.

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- Definition

Fair value measurement of mortgage servicing rights.

+ References

No definition available.

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- Definition

Fair value of real estate held for sales during the period

+ References

No definition available.

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- Definition

Reduction in valuation allowance of Mortgage servicing rights.

+ References

No definition available.

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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

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=36462937&loc=d3e19207-110258

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Amount of transfers of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset) out of level 3 of the fair value hierarchy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258

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-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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- Definition

Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 14A

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Amount of allowance for credit losses related to recorded investment.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

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- Definition

The cash inflow associated with the collection, including prepayments, of loans receivable issued for financing of goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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-Name Accounting Standards Codification

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