Fair Value (Details Textual)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Property
Dec. 31, 2013
USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Fair value assets liabilities transfers amount between level 1 and level 2 $ 0 $ 0  
Impaired loans, unpaid carrying amount with allowance recorded 4,014 6,908 $ 5,794
Impaired loans, allowance 497 874 560
Provision for loan losses 3,510 $ 1,880 $ 1,290
Number of properties charged down reflecting updated appraisals | Property   1  
Other real estate owned measured at fair value less costs to sell   $ 45  
Write down of other real estate owned $ 0 5  
Maximum maturity period of short term borrowings 90 days    
Measured Using Present Value of Cash Flows      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Troubled debt restructurings $ 2,900 4,200  
Collateral Dependent Impaired Loans      
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]      
Impaired loans, unpaid carrying amount with allowance recorded 3,400 988  
Impaired loans, allowance 383 117  
Provision for loan losses $ 270 $ 992