Loans and Leases - Acquired Credit Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Outstanding principal balance	$ 3,186	$ 3,551
Carrying amount	1,267	1,253
Allowance for loan losses	8	$ 8
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning of period	144
Reclassification from nonaccretable difference	46
Accretable yield amortized to interest income	(74)
End of period	$ 116