Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Commitments and Contingencies Disclosure [Line Items]
Operating leases rental expense	$ 973	$ 790
Minimum [Member]
Commitments and Contingencies Disclosure [Line Items]
Lease Expiration Period	4 months
Lease Expiration Period, Renewal Option	6 months
Maximum [Member]
Commitments and Contingencies Disclosure [Line Items]
Lease Expiration Period	25 years
Lease Expiration Period, Renewal Option	25 years
Commitments to extend credit on standby letters of credit [Member] | Commitments to Extend Credit [Member]
Commitments and Contingencies Disclosure [Line Items]
Contract amount	$ 5,706		$ 5,629