SECURITIES - Investment securities available for sale in continuous unrealized loss position (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Available-for-sale securities in a continuous unrealized loss position, fair value [Abstract]
Less than 12 months	$ 195,983	$ 73,464
12 months or longer	843	6,560
Total	196,826	80,024
Available-for-sale securities in a continuous unrealized loss position, unrealized losses [Abstract]
Less than 12 months	1,761	150
12 months or longer	3	66
Total	1,764	216
Obligations of U.S. Government and U.S. Government sponsored enterprises
Available-for-sale securities in a continuous unrealized loss position, fair value [Abstract]
Less than 12 months	15,169	57,512
12 months or longer	0	4,945
Total	15,169	62,457
Available-for-sale securities in a continuous unrealized loss position, unrealized losses [Abstract]
Less than 12 months	16	108
12 months or longer	0	54
Total	16	162
Mortgage-backed securities, residential
Available-for-sale securities in a continuous unrealized loss position, fair value [Abstract]
Less than 12 months	177,058	11,051
12 months or longer	0	0
Total	177,058	11,051
Available-for-sale securities in a continuous unrealized loss position, unrealized losses [Abstract]
Less than 12 months	1,741	19
12 months or longer	0	0
Total	1,741	19
Obligations of states and political subdivisions
Available-for-sale securities in a continuous unrealized loss position, fair value [Abstract]
Less than 12 months	3,756	4,625
12 months or longer	592	1,056
Total	4,348	5,681
Available-for-sale securities in a continuous unrealized loss position, unrealized losses [Abstract]
Less than 12 months	4	22
12 months or longer	2	6
Total	6	28
Corporate bonds and notes
Available-for-sale securities in a continuous unrealized loss position, fair value [Abstract]
Less than 12 months		0
12 months or longer		243
Total		243
Available-for-sale securities in a continuous unrealized loss position, unrealized losses [Abstract]
Less than 12 months		0
12 months or longer		4
Total		4
Corporate Stocks
Available-for-sale securities in a continuous unrealized loss position, fair value [Abstract]
Less than 12 months		276
12 months or longer		316
Total		592
Available-for-sale securities in a continuous unrealized loss position, unrealized losses [Abstract]
Less than 12 months		1
12 months or longer		2
Total		$ 3
SBA Loan Pools
Available-for-sale securities in a continuous unrealized loss position, fair value [Abstract]
Less than 12 months	0
12 months or longer	251
Total	251
Available-for-sale securities in a continuous unrealized loss position, unrealized losses [Abstract]
Less than 12 months	0
12 months or longer	1
Total	$ 1