Fair Value - Level 3 Quantitative Information (Details) (USD $)	3 Months Ended
	Mar. 31, 2014 Recurring Interest Rate Swap Agreements Derivative Financial Instruments, Assets Weighted Average	Mar. 31, 2013 Recurring Interest Rate Swap Agreements Derivative Financial Instruments, Assets Weighted Average	Mar. 31, 2014 Recurring Interest Rate Lock Commitments Derivative Financial Instruments, Liabilities	Mar. 31, 2013 Recurring Interest Rate Lock Commitments Derivative Financial Instruments, Liabilities Weighted Average	Mar. 31, 2014 Recurring Mortgage Servicing Rights Derivative Financial Instruments, Assets	Mar. 31, 2013 Recurring Mortgage Servicing Rights Derivative Financial Instruments, Assets	Mar. 31, 2013 Nonrecurring Impaired Loans Receivable Minimum	Mar. 31, 2013 Nonrecurring Impaired Loans Receivable Maximum	Mar. 31, 2014 Nonrecurring Impaired Loans Receivable Weighted Average	Mar. 31, 2014 Nonrecurring Other Real Estate Owned Weighted Average	Mar. 31, 2013 Nonrecurring Other Real Estate Owned Weighted Average	Mar. 31, 2014 Level 3 Recurring Interest Rate Swap Agreements	Dec. 31, 2013 Level 3 Recurring Interest Rate Swap Agreements	Mar. 31, 2014 Level 3 Recurring Interest Rate Lock Commitments	Dec. 31, 2013 Level 3 Recurring Interest Rate Lock Commitments	Mar. 31, 2014 Level 3 Recurring Mortgage Servicing Rights	Dec. 31, 2013 Level 3 Recurring Mortgage Servicing Rights	Mar. 31, 2014 Level 3 Nonrecurring Impaired Loans Receivable	Dec. 31, 2013 Level 3 Nonrecurring Impaired Loans Receivable	Mar. 31, 2014 Level 3 Nonrecurring Other Real Estate Owned	Dec. 31, 2013 Level 3 Nonrecurring Other Real Estate Owned
Quantitative Information
Assets, Fair Value Disclosure												$ 119,000	$ 132,000			$ 4,782,000	$ 4,536,000	$ 5,642,000	$ 6,058,000	$ 289,000	$ 1,034,000
Liabilities, Fair Value Disclosure														178,000	(23,000)
Fair Value Inputs
Fair Value Inputs, Discount Rate	0.35%	0.50%			8.00%	8.00%
Constant prepayment rate					9.24%	9.72%
Cost of service					$ 50	$ 50
Pull through rates			79.06%	86.40%
Collateral discounts							10.00%	15.00%	15.00%	15.00%	15.00%