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REGULATORY CAPITAL REQUIREMENTS Regulatory Capital Requirements (Narrative) (Details) - USD ($)
$ in Thousands
Oct. 08, 2015
Mar. 31, 2017
Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Capital Required for Capital Adequacy to Risk Weighted Assets   9.25% 8.63%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets   7.25% 6.63%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets   5.75% 5.13%
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 $ 15,000 $ 58,794 58,755
Debt Instrument, Term 10 years    
Debt Instrument, Interest Rate, Stated Percentage 5.50%    
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   1.25%  
Tier II Capital [Domain]      
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]      
Subordinated Debt   $ 15,000 $ 15,000