Fair Value Measurements Fair Value Nonrecurring Basis (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	$ 757	[1]	$ 803	[2]
Loans Receivable, Fair Value Adjustment	0		0
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	0	[1]	0	[2]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	0	[1]	0	[2]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure	$ 757	[1]	$ 803	[2]

[1] Collateral-dependent impaired loans held at March 31, 2015 that had write-downs in fair value or whose specific reserve changed during the first three months of 2015.

[2] Collateral-dependent impaired loans held at March 31, 2014 that had write-downs in fair value or whose specific reserve changed during the first three months of 2014.