Derivative Instruments (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Derivative [Line Items]
Notional amount	$ 2,821,000		$ 2,821,000		$ 2,877,000
Collateral Already Posted, Aggregate Fair Value	730,000		730,000
Fair value of yield maintenance provisions	242,000		242,000		213,000
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount	2,821,000		2,821,000		2,877,000
Net gains (losses) recognized in earnings	0	$ 0	0	$ 0
Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Notional amount	3,510,000		3,510,000		1,560,000
Fair value of yield maintenance provisions	$ 10,000		$ 10,000		$ 8,000