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REGULATORY CAPITAL REQUIREMENTS Regulatory Capital Requirements (Narrative) (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Oct. 08, 2015
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Capital Required for Capital Adequacy to Risk Weighted Assets 9.875% 9.25%  
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets 7.875% 7.25%  
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets 6.375% 5.75%  
Tier One Leverage Capital Required for Capital Adequacy to Average Assets 4.00% 4.00%  
Capital Conservation Buffer 2.50%    
Value Of Trust Preferred Securities Included In Tier One Capital $ 43,000 $ 43,000  
Subordinated Debt $ 58,989 58,911 $ 15,000
Minimum      
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Capital Required for Capital Adequacy to Risk Weighted Assets 8.00%    
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets 6.00%    
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets 4.50%    
Tier One Leverage Capital Required for Capital Adequacy to Average Assets 4.00%    
Capital Conservation Buffer 1.875%    
Tier II Capital [Domain]      
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Subordinated Debt $ 15,000 $ 15,000