INVESTMENT SECURITIES, Analysis of Gross Unrealized Losses (Details) $ in Thousands	Jun. 30, 2019 USD ($) Security	Dec. 31, 2018 USD ($)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 3,218	$ 74,186
Less than 12 months, unrealized losses	(10)	(237)
12 months or more, fair value	158,560	187,203
12 Months or more, unrealized losses	(1,475)	(5,653)
Total fair value	161,778	261,389
Total unrealized losses	$ (1,485)	(5,890)
Investment securities in unrealized loss position less than 12 months | Security	8
Investment securities in unrealized loss position more than 12 months | Security	146
Investment securities pledged as collateral	$ 33,066	36,781
U.S. Treasury Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	0	37,805
Less than 12 months, unrealized losses	0	(67)
12 months or more, fair value	11,489	5,951
12 Months or more, unrealized losses	(29)	(90)
Total fair value	11,489	43,756
Total unrealized losses	(29)	(157)
Securities of U.S. Government Agencies and Corporations [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	1,984	16,959
Less than 12 months, unrealized losses	(1)	(39)
12 months or more, fair value	17,669	13,540
12 Months or more, unrealized losses	(56)	(189)
Total fair value	19,653	30,499
Total unrealized losses	(57)	(228)
Obligations of States and Political Subdivisions [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	0	847
Less than 12 months, unrealized losses	0	(2)
12 months or more, fair value	3,325	9,134
12 Months or more, unrealized losses	(9)	(121)
Total fair value	3,325	9,981
Total unrealized losses	(9)	(123)
Collateralized Mortgage Obligations [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	0	2,217
Less than 12 months, unrealized losses	0	(6)
12 months or more, fair value	42,082	53,217
12 Months or more, unrealized losses	(409)	(1,844)
Total fair value	42,082	55,434
Total unrealized losses	(409)	(1,850)
Mortgage-backed Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	1,234	16,358
Less than 12 months, unrealized losses	(9)	(123)
12 months or more, fair value	83,995	105,361
12 Months or more, unrealized losses	(972)	(3,409)
Total fair value	85,229	121,719
Total unrealized losses	$ (981)	$ (3,532)