Fair Value Measurements (Details 2) (Mortgage Servicing Rights, USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair value of assets
Total unrealized gains included in earnings related to Level 3 assets still held	$ 296,000	$ 96,000	$ 677,000	$ 372,000
Recurring | Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Fair value of assets
Balance at beginning of period	2,873,000	2,666,000	2,549,000
Transfer into level 3				3,050,000
Total gains or losses (realized/unrealized) Included in earnings	123,000	(273,000)	86,000	(985,000)
Issued	83,000	231,000	444,000	559,000
Balance at end of period	$ 3,079,000	$ 2,624,000	$ 3,079,000	$ 2,624,000