Loans (Summary of TDRs with a Payment Default During the Period) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) loan	Sep. 30, 2015 USD ($) loan	Sep. 30, 2016 USD ($) loan	Sep. 30, 2015 USD ($) loan
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract (in loan) | loan	1	2	5	7
Financing receivable modifications subsequent default recorded investment | $	$ 0	$ 87	$ 1,721	$ 1,062
Commercial Loan Portfolio [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract (in loan) | loan	0	1	2	5
Financing receivable modifications subsequent default recorded investment | $	$ 0	$ 74	$ 1,721	$ 1,016
Commercial Loan Portfolio [Member] | Commercial real estate [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract (in loan) | loan	0	1	2	5
Financing receivable modifications subsequent default recorded investment | $	$ 0	$ 74	$ 1,721	$ 1,016
Consumer loan portfolio [Member]
Troubled debt restructurings on financing receivables with defaults payment
Financing receivable modifications subsequent default number of contract (in loan) | loan	1	1	3	2
Financing receivable modifications subsequent default recorded investment | $	$ 0	$ 13	$ 0	$ 46