Loans (Narrative) (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) loan	Dec. 31, 2014 USD ($) loan	Dec. 31, 2013 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, modifications, number of contracts | loan	0	1	2
Troubled debt restructuring, additional lending amount	$ 0	$ 0
Mortgage loans in process of foreclosure, amount	$ 169,000	$ 288,000
Commercial and Industrial Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, modifications, number of contracts | loan	0	0	1
Loans and leases receivables, amount purchased	$ 4,747,000	$ 7,834,000
Commercial Real Estate Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivable, modifications, number of contracts | loan	0	1	1
Loans and leases receivables, amount purchased	$ 5,148,000	$ 298,000
Loans Acquired With Deteriorated Credit Quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (Decrease) in allowance for loan losses	0	54,000	$ 0
Troubled Debt Restructuring
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (Decrease) in allowance for loan losses	0	0	(210,000)
Charge-offs due to troubled debt restructurings	0	0	0
Subsequently Defaulted
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (Decrease) in allowance for loan losses	0	(90,000)	0
Charge-offs due to troubled debt restructurings	0	91,000	0
Loans Purchased
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses, reversal	$ 54,000	$ 0	$ 0