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Loans and Allowance for Loan Losses (Details 1) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance For Credit Losses [Line Items]
Letters of credit outstanding, Amount	$ 127,928	$ 105,808
Loan commitments and unused lines of credit [Member]
Financing Receivable, Allowance For Credit Losses [Line Items]
Letters of credit outstanding, Amount	126,902	105,136
Standby letters of credit [Member]
Financing Receivable, Allowance For Credit Losses [Line Items]
Letters of credit outstanding, Amount	$ 1,026	$ 672