Mortgage Servicing Rights, Net (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Servicing Asset at Amortized Value, Balance [Roll Forward]
Servicing Asset at Amortized Cost, Beginning	$ 1,526	$ 1,245
Servicing Asset at Amortized Value, Additions	261	169
Servicing Asset at Amortized Value, Amortization	(125)	(91)
Servicing Asset at Amortized Value, Change In Valuation Allowance	66	(63)
Servicing Asset at Amortized Cost, Ending	1,728	1,260
Valuation Allowance for Impairment of Recognized Servicing Assets, Balance [Abstract]
Valuation Allowance for Impairment of Recognized Servicing Assets, Beginning Balance	386	117
Valuation Allowance for Impairment of Recognized Servicing Assets, Ending Balance	320	180
Servicing Asset at Amortized Value, Fair Value [Abstract]
Servicing Asset at Amortized Value, Fair Value, Beginning	1,526	1,245
Servicing Asset at Amortized Value, Fair Value, Ending	$ 1,994	$ 1,260