Other Intangible Assets Schedule of Finite-Lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,949		$ 7,532
Accumulated Amortization	(3,457)		(2,783)
Net Carrying Amount	4,492		4,749		1,458
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Beginning Balance	4,749		1,458		1,443
Intangible Assets Acquired	417		3,912		352
Amortization of Intangible Assets	(674)		(621)		(337)
Finite-Lived Intangible Assets, Ending Balance	4,492		4,749		1,458
Depositor Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,247	[1]	2,247	[1]
Accumulated Amortization	(2,094)	[1]	(1,961)	[1]
Net Carrying Amount	153	[1]	286	[1]	460	[1]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Beginning Balance	286	[1]	460	[1]	674	[1]
Intangible Assets Acquired	0	[1]	0	[1]	0	[1]
Amortization of Intangible Assets	(133)	[1]	(174)	[1]	(214)	[1]
Finite-Lived Intangible Assets, Ending Balance	153	[1]	286	[1]	460	[1]
Mortgage Servicing Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,251	[2]	834	[2]
Accumulated Amortization	(392)	[2]	(235)	[2]
Net Carrying Amount	859	[2]	599	[2]	371	[2]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Beginning Balance	599	[2]	371	[2]	212	[2]
Intangible Assets Acquired	417	[2]	339	[2]	226	[2]
Amortization of Intangible Assets	(157)	[2]	(111)	[2]	(67)	[2]
Finite-Lived Intangible Assets, Ending Balance	859	[2]	599	[2]	371	[2]
Customer Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,451	[1]	4,451	[1]
Accumulated Amortization	(971)	[1]	(587)	[1]
Net Carrying Amount	3,480	[1]	3,864	[1]	627	[1]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Beginning Balance	3,864	[1]	627	[1]	557	[1]
Intangible Assets Acquired	0	[1]	3,573	[1]	126	[1]
Amortization of Intangible Assets	(384)	[1]	(336)	[1]	(56)	[1]
Finite-Lived Intangible Assets, Ending Balance	$ 3,480	[1]	$ 3,864	[1]	$ 627	[1]

[1] Reported in the income statement as a component of other operating expense.

[2] Reported in the income statement as a reduction of fees for other services to customers.