SECURITIES (Details 1) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	$ 480,324	$ 293,889
12 Months or More, Fair Value	12,284	46,465
Total Fair Value	492,608	340,354
Less Than 12 Months, Unrealized Losses	(7,009)	(2,204)
12 Months or More, Unrealized Losses	(384)	(1,008)
Total Unrealized Losses	(7,393)	(3,212)
US Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	0	9,932
12 Months or More, Fair Value	0	4,958
Total Fair Value	0	14,890
Less Than 12 Months, Unrealized Losses	0	(27)
12 Months or More, Unrealized Losses	0	(42)
Total Unrealized Losses	0	(69)
State, county and municipal securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	47,647	19,293
12 Months or More, Fair Value	0	11,557
Total Fair Value	47,647	30,850
Less Than 12 Months, Unrealized Losses	(469)	(199)
12 Months or More, Unrealized Losses	0	(212)
Total Unrealized Losses	(469)	(411)
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	18,377	1,383
12 Months or More, Fair Value	493	0
Total Fair Value	18,870	1,383
Less Than 12 Months, Unrealized Losses	(363)	(28)
12 Months or More, Unrealized Losses	(7)	0
Total Unrealized Losses	(370)	(28)
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than 12 Months, Fair Value	414,300	263,281
12 Months or More, Fair Value	11,791	29,950
Total Fair Value	426,091	293,231
Less Than 12 Months, Unrealized Losses	(6,177)	(1,950)
12 Months or More, Unrealized Losses	(377)	(754)
Total Unrealized Losses	$ (6,554)	$ (2,704)