Loans and Leases - Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Impaired Loans [Abstract]
Cash collected on non accrual and impaired loan	$ 9,600	$ 7,000
Amount credited to principal balance outstanding	8,400	6,400
Summary of impaired loans [Abstract]
Impaired loans with a valuation allowance	2,414	3,274
Impaired loans without a valuation allowance	4,777	12,804
Valuation allowance related to impaired loans	398	1,041
Average recorded investment [Abstract]
Interest income recognized on a cash basis on impaired loans and leases	$ 234	$ 377