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Regulatory Capital Requirements (Details Textual) - USD ($)
$ in Thousands
 9 Months Ended 37 Months Ended
Sep. 30, 2016
Jan. 31, 2019
Dec. 31, 2015
Regulatory Capital Requirements [Line Items]      
Tier One Leverage Capital Required for Capital Adequacy to Average Assets 4.00%    
Capital Required for Capital Adequacy to Risk Weighted Assets 8.00%    
Assets, Total $ 907,684   $ 878,376
Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets 4.50%    
Scenario, Forecast [Member]      
Regulatory Capital Requirements [Line Items]      
Tier One Capital Conversation Buffer   2.50%  
Maximum [Member]      
Regulatory Capital Requirements [Line Items]      
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets 6.00%    
Small Bank Holding Companies [Member]      
Regulatory Capital Requirements [Line Items]      
Assets, Total $ 1,000,000    
Opt Out Election Description The Bank made the one-time accumulated other comprehensive income (AOCI) opt-out election on its first Call Report filed after January 1, 2015, which allowed banks under $250 billion a one-time opt-out election to remove the impact of certain unrealized capital gains and losses from the calculation of capital.    
Capital Conservation Buffer [Member]      
Regulatory Capital Requirements [Line Items]      
Tier One Capital Conversation Buffer 0.625%    
Tier One Capital Conversation Buffer, Increase 0.625%