Troubled Debt Restructurings (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($) contract	Sep. 30, 2015 contract	Sep. 30, 2016 USD ($) contract	Sep. 30, 2015 contract	Dec. 31, 2015 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructured loans			27		24
Loan is considered payment default			30 days
Financing Receivable, Modifications, Nonaccrual, Number of Contracts	5		5		2
Financing Receivable, Modifications, Nonaccrual, Recorded Investment | $	$ 1,340		$ 1,340		$ 526
Troubled Debt Restructuring Modifications Number Of Contracts	2	1	4	2
Total troubled debt restructured loans | $	$ 7,700		$ 7,700		$ 7,500
Residential Single Family
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring Modifications Number Of Contracts	2	1	3	2
Trouble Debt Restructuring Modifications Payment Reduction Number of Contracts		2
Troubled Debt Restructuring Modifications Amortization Period Number of Contracts		1	1	1
Residential Single Family and Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring Modifications Number Of Contracts			2
Commercial Real Estate Non-Owner Occupied
Financing Receivable, Modifications [Line Items]
Troubled Debt Restructuring Modifications Number Of Contracts			1
Troubled Debt Restructuring Modifications Amortization Period Number of Contracts			1