Goodwill and Other Intangible Assets (Details 2) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Estimated amortization expense:  
For the year ended December 31, 2015 $ 1,952 [1]
For the year ended December 31, 2016 1,863 [1]
For the year ended December 31, 2017 1,754 [1]
For the year ended December 31, 2018 1,619 [1]
For the year ended December 31, 2019 $ 1,512 [1]
[1] Excludes the amortization of mortgage servicing rights. Amortization of mortgage servicing rights was $149,000 in 2014, $232,000 in 2013 and $330,000 in 2012.