Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Commitments and Contingencies Disclosure [Line Items]
Operating leases rental expense	$ 1,000	$ 744	$ 2,000	$ 1,500
Minimum [Member]
Commitments and Contingencies Disclosure [Line Items]
Lease expiration period			3 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		$ 5,706		$ 5,629