SECURITIES - UNREALIZED LOSSES (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Securities with unrealized losses
Less than 12 Months, Fair Value	$ 46,479	$ 29,177
Less than 12 Months, Unrealized Loss	(255)	(359)
12 Months or More, Fair Value	33,378	208,935
12 Months or More, Unrealized Loss	(312)	(5,277)
Total, Fair Value	79,857	238,112
Total, Unrealized Loss	(567)	(5,636)
U.S. treasury notes
Securities with unrealized losses
12 Months or More, Fair Value		3,975
12 Months or More, Unrealized Loss		(57)
Total, Fair Value		3,975
Total, Unrealized Loss		(57)
U.S. government agencies
Securities with unrealized losses
Less than 12 Months, Fair Value	3,411
Less than 12 Months, Unrealized Loss	(7)
12 Months or More, Fair Value	4,653	21,102
12 Months or More, Unrealized Loss	(30)	(459)
Total, Fair Value	8,064	21,102
Total, Unrealized Loss	(37)	(459)
States and political subdivisions
Securities with unrealized losses
Less than 12 Months, Fair Value	2,420	8,007
Less than 12 Months, Unrealized Loss	(9)	(125)
12 Months or More, Fair Value	1,192	25,540
12 Months or More, Unrealized Loss	(28)	(370)
Total, Fair Value	3,612	33,547
Total, Unrealized Loss	(37)	(495)
Mortgage-backed - residential
Securities with unrealized losses
Less than 12 Months, Fair Value	10,925	19,250
Less than 12 Months, Unrealized Loss	(42)	(144)
12 Months or More, Fair Value	16,263	112,369
12 Months or More, Unrealized Loss	(142)	(3,470)
Total, Fair Value	27,188	131,619
Total, Unrealized Loss	(184)	(3,614)
Mortgage-backed - commercial
Securities with unrealized losses
Less than 12 Months, Fair Value	7,683
Less than 12 Months, Unrealized Loss	(25)
12 Months or More, Fair Value	11,270	45,949
12 Months or More, Unrealized Loss	(112)	(921)
Total, Fair Value	18,953	45,949
Total, Unrealized Loss	(137)	(921)
Asset-backed
Securities with unrealized losses
Less than 12 Months, Fair Value	22,040	1,920
Less than 12 Months, Unrealized Loss	(172)	(90)
Total, Fair Value	22,040	1,920
Total, Unrealized Loss	$ (172)	$ (90)