INCOME TAXES (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
INCOME TAXES [Abstract]
Tax at federal statutory rate	35.00%	34.00%	34.00%
Tax effect of:
Tax-exempt income	(0.80%)	(0.40%)	(0.90%)
Other non-deductible expenses	0.30%	0.20%	0.30%
State income taxes, net of federal benefit	5.10%	4.50%	4.40%
Other	(0.20%)	(0.10%)	(0.10%)
Actual income tax expense (benefit) rate	39.40%	38.20%	37.70%