Financial Instruments with Off-Balance Sheet Risk (Loan Commitments and Standby Letters of Credit) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Loan Commitments and Standby Letters of Credit [Line Items]
Contractual Loan Commitments	$ 395,316	$ 283,231
Standby letters of credit	22,970	30,837
Home equity lines of credit
Loan Commitments and Standby Letters of Credit [Line Items]
Contractual Loan Commitments	84,148	62,704
Construction Loans [Member]
Loan Commitments and Standby Letters of Credit [Line Items]
Contractual Loan Commitments	77,479	46,781
Other loan commitments
Loan Commitments and Standby Letters of Credit [Line Items]
Contractual Loan Commitments	$ 233,689	$ 173,746