Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended				9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Mortgage Service Rights		Sep. 30, 2013 Mortgage Service Rights		Sep. 30, 2014 Mortgage Service Rights		Sep. 30, 2013 Mortgage Service Rights
Changes in mortgage servicing rights
Balance at beginning of period	$ 2,867	$ 3,036	$ 2,911		$ 2,873		$ 3,036		$ 2,549
Originated mortgage servicing rights			95		83		217		444
Changes in fair value:
Due to change in model inputs and assumptions			27	[1]	296	[1]	98	[1]	677	[1]
Other changes in fair value			(166)	[2]	(173)	[2]	(484)	[2]	(591)	[2]
Balance at end of period	$ 2,867	$ 3,036	$ 2,867		$ 3,079		$ 2,867		$ 3,079

[1] The change in fair value resulting from changes in valuation inputs or assumptions used in the valuation model reflects the change in discount rates and prepayment speed assumptions primarily due to changes in interest rates.

[2] Other changes in fair value reflect changes due to customer payments and passage of time.