DERIVATIVES (Detail Textuals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivative [Line Items]
Derivative asset position net	$ 8,500		$ 8,500
Collateral received against obligations in net asset position	8,300		8,300
Interest rate swaps | Derivative designated as a cash flow hedge
Derivative [Line Items]
Notional amounts	290,000		290,000		$ 290,000
Interest rate swaps | Derivative designated as a cash flow hedge | Federal Home Loan Bank
Derivative [Line Items]
Interest (income) expense on derivative	$ (344)	$ 459	(279)	$ 734
Reduction to interest expense			(279)
Reclassified estimated decrease in interest expense			$ 1,900