INVESTMENT SECURITIES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Investment securities available-for-sale [Abstract]
Amortized cost	$ 293,513		$ 293,513		$ 284,947
Unrealized gains	157		157		311
Unrealized losses	(7,761)		(7,761)		(4,517)
Estimated fair value	285,909		285,909		280,741
Proceeds from sales/calls/maturities of available-for-sale securities	3,465	$ 0	14,580	$ 2,737
Gross realized gains from sales/calls of available-for-sale securities	0	0	0	0
Gross realized losses from sales/calls of available-for-sale securities	0	$ 0	0	$ (16)
U.S. Treasury Securities [Member]
Investment securities available-for-sale [Abstract]
Amortized cost	30,433		30,433		18,589
Unrealized gains	0		0		0
Unrealized losses	(242)		(242)		(125)
Estimated fair value	30,191		30,191		18,464
Securities of U.S. Government Agencies and Corporations [Member]
Investment securities available-for-sale [Abstract]
Amortized cost	38,318		38,318		21,353
Unrealized gains	0		0		0
Unrealized losses	(360)		(360)		(244)
Estimated fair value	37,958		37,958		21,109
Obligations of States and Political Subdivisions [Member]
Investment securities available-for-sale [Abstract]
Amortized cost	18,414		18,414		23,138
Unrealized gains	124		124		216
Unrealized losses	(167)		(167)		(146)
Estimated fair value	18,371		18,371		23,208
Collateralized Mortgage Obligations [Member]
Investment securities available-for-sale [Abstract]
Amortized cost	66,296		66,296		67,724
Unrealized gains	0		0		0
Unrealized losses	(2,659)		(2,659)		(1,641)
Estimated fair value	63,637		63,637		66,083
Mortgage-backed Securities [Member]
Investment securities available-for-sale [Abstract]
Amortized cost	140,052		140,052		154,143
Unrealized gains	33		33		95
Unrealized losses	(4,333)		(4,333)		(2,361)
Estimated fair value	$ 135,752		$ 135,752		$ 151,877