Fair Value Measurements (Narrative) (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans with impairment, unpaid principal	$ 3,757,000	$ 4,066,000	$ 4,739,000
Fair value transfers	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	0	0
Liabilities, fair value	$ 0	$ 0