FAIR VALUE MEASUREMENTS, Key Methods and Assumptions Used (Details) - Impaired Loans [Member] - Collateral, Market, Income, Enterprise, Liquidation and Discounted Cash Flows [Member]	12 Months Ended
	Dec. 31, 2017
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assumption inputs	External appraised values, management assumptions regarding market trends or other relevant factors; selling costs ranging 6% to 7%.
Minimum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Selling costs	6.00%
Maximum [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Selling costs	7.00%