Deposits (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Deposits [Line Items]
Non-interest-bearing checking accounts	$ 370,997	$ 379,552
Interest-bearing checking and money market accounts	737,533	727,729
Savings deposits	215,590fdef_SavingsAccountsNet	203,673fdef_SavingsAccountsNet
Retail certificates of deposit less than $250,000	422,886us-gaap_TimeDepositsLessThan100000	422,907us-gaap_TimeDepositsLessThan100000
Retail certificates of deposit greater than $250,000	25,687us-gaap_TimeDeposits100000OrMore	26,952us-gaap_TimeDeposits100000OrMore
Deposits	$ 1,772,693us-gaap_Deposits	$ 1,760,813us-gaap_Deposits

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

No definition available.

+ Details

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- Definition

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.12)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 9

+ Details

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- Definition

Amount of interest-bearing domestic money market demand account deposit liabilities.

+ References

+ Details

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- Definition

Amount of noninterest-bearing domestic checking deposit liabilities.

+ References

+ Details

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- Definition

The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 405

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6479006&loc=d3e64164-112818

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Industry Guide

-Number 3

-Section V

-Paragraph A

-Subparagraph 4

+ Details

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- Definition

The aggregate amount of domestic or foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to less than $100,000.

+ References

No definition available.

+ Details

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