Junior Subordinated Debentures Owed to Unconsolidated Subsidiary Trust (Details Textual) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Mar. 27, 2007	Dec. 31, 2013	Dec. 31, 2012
First Defiance Statutory Trusts I [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Trust Preferred Securities		$ 20
Proceeds from Issuance of Subordinated Long-term Debt		20.6
Preferred Securities Variable Interest Rate	LIBOR rate plus 1.38%
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Description		The Trust Preferred Securities and Junior Debentures mature December 15, 2035 but may be redeemed by the issuer at par after October 28, 2010.
Coupon Rate On Preferred Securities, Period End		1.63%	1.77%
First Defiance Statutory Trusts II [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Trust Preferred Securities	15
Proceeds from Issuance of Subordinated Long-term Debt	$ 15.5
Preferred Securities Variable Interest Rate	LIBOR rate plus 1.5%
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Description		The Trust Preferred Securities and Subordinated Debentures mature on June 15, 2037, but may be redeemed at the Company's option at any time on or after June 15, 2012, or at any time upon certain events.
Coupon Rate On Preferred Securities, Period End		1.75%	1.89%