Subordinated Debentures And Trust Preferred Securities (Schedule Of Subordinated Debenture Issuance) (Details) (USD $)	3 Months Ended		3 Months Ended			3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 CenBank Trust III [Member]		Apr. 15, 2014 CenBank Trust III [Member]	Mar. 31, 2014 Guaranty Capital Trust III [Member]		Apr. 07, 2014 Guaranty Capital Trust III [Member]
Subordinated Borrowing [Line Items]
Date Issued			Apr. 08, 2004			Jun. 30, 2003
Subordinated Debt	$ 25,774,000	$ 25,774,000	$ 15,464,000			$ 10,310,000
Maturity Date	Dec. 01, 2031		Apr. 15, 2034			Jul. 07, 2033
Next Call Date			Jul. 15, 2014	[1]		Jul. 07, 2014	[1]
Fixed Or Variable			Variable			Variable
Rate Adjuster			2.65			3.10
Current Rate			2.89%		2.88%	3.34%		3.33%
Next Rate Reset Date			Jul. 15, 2014	[2]		Jul. 07, 2014	[2]

[1] Call date represents the earliest or next date the Company can call the debentures

[2] On April 7, 2014, the rate on the Guaranty Capital Trust III subordinated debentures reset to 3.33%. On April 15, 2014, the rate on the CenBank Trust III subordinated debentures reset to 2.88%.