TDR's that have subsequent default (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) contract	Dec. 31, 2014 USD ($) contract	Dec. 31, 2013 USD ($) contract
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Recorded Investment | $	$ 1,267	$ 410	$ 177
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	7	5	2
Commercial And Industrial [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Recorded Investment | $	$ 339	$ 196	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	3	2	0
Commercial Real Estate [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Recorded Investment | $	$ 502	$ 0	$ 176
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	1	0	1
Residential Real Estate [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Recorded Investment | $	$ 326	$ 214	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	2	3	0
Home Equity Line of Credit [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Recorded Investment | $	$ 100	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	1	0	0
Consumer Portfolio Segment [Member]
TROUBLED DEBT RESTRUCTURINGS THAT SUBSEQUENTLY DEFAULTED:
Recorded Investment | $	$ 0	$ 0	$ 1
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | contract	0	0	1