REGULATORY CAPITAL REQUIREMENTS Regulatory Capital Requirements (Narrative) (Details) - USD ($) $ in Thousands	Sep. 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	$ 59,028	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