Fair Value (Fair Value Inputs, Assets, Quantitative Information) (Details) (USD $) In Thousands, unless otherwise specified							12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2013 Level 3	Dec. 31, 2012 Level 3	Dec. 31, 2013 Impaired Loans Level 3	Dec. 31, 2012 Impaired Loans Level 3	Dec. 31, 2013 Impaired Loans Minimum Level 3	Dec. 31, 2012 Impaired Loans Minimum Level 3	Dec. 31, 2013 Impaired Loans Maximum Level 3	Dec. 31, 2012 Impaired Loans Maximum Level 3	Dec. 31, 2013 Other Real Estate Owned Level 3	Dec. 31, 2012 Other Real Estate Owned Level 3	Dec. 31, 2013 Other Real Estate Owned Minimum Level 3	Dec. 31, 2012 Other Real Estate Owned Minimum Level 3	Dec. 31, 2013 Other Real Estate Owned Maximum Level 3	Dec. 31, 2012 Other Real Estate Owned Maximum Level 3	Dec. 31, 2012 Mortgage Service Rights Level 3
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Impaired loans with specific valuation allowances	$ 8,887	$ 27,257			$ 8,887	$ 34,383	$ 8,887	$ 34,383
Other real estate owned	3,144	6,552	21,270	39,536	3,144	6,552							3,144	6,552
MSRs	$ 2,232	$ 1,308	$ 0			$ 1,308													$ 1,308
Valuation Techniques							Market approach	Market approach					Market approach	Market approach					Market approach
Unobservable Input							Appraised value less selling costs of 5% to 10% Additional discounts of 5% to 50% to appraised value to reflect liquidation value	Appraised value less selling costs of 5% to 10% Additional discounts of 5% to 50% to appraised value to reflect liquidation value					Appraised value less selling costs of 5% to 10%	Appraised value less selling costs of 5% to 10%					Weighted average prepayment speed of 10.5%
Selling costs (as a percent)									5.00%	5.00%	10.00%	10.00%			5.00%	5.00%	10.00%	10.00%
Discount to appraised value (as a percent)									5.00%	5.00%	50.00%	50.00%
Weighted average prepayment speed (as a percent)																			10.50%