OTHER BORROWINGS (Schedule of Other Borrowings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Amount:
Total year-end outstanding	$ 95,860	$ 105,685
Repurchase Agreements [Member] | Retail repurchase agreements [Member]
Amount:
Maturing in one year or less	95,860	100,685
Maturing after one year through two years	0	5,000
Maturing after two years	0	0
Total year-end outstanding	$ 95,860	$ 105,685
Weighted Average Rate:
Maturing in one year or less, weighted average interest rate	0.29%	0.19%
Maturing after one year through two years, weighted average interest rate	0.00%	2.15%
Maturing after two years, weighted average interest rate	0.00%	0.00%
Total year-end outstanding, weighted average interest rate	0.29%	0.28%
Other Borrowings, Activity for Year [Abstract]
Average outstanding	$ 111,872	$ 108,427
Average outstanding, weighted average interest rate	0.28%	0.29%
Maximum outstanding at any month end	$ 120,245	$ 112,309