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Loans and Allowance for Loan Losses (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Loans and Allowance for Loan Losses (Textual)        
Principal amount outstanding of loans held-in-portfolio $ 100   $ 100  
Impaired loans which included in groups of homogenous loans     Impaired loans less than $100,000 are included in groups of homogenous loans.  
Increase in allowance for loan and lease losses $ 0 $ 0 $ 0 $ 0