INVESTMENT SECURITIES, Amortized Cost, Estimated Values and Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2016	Dec. 31, 2015
INVESTMENT SECURITIES [Abstract]
Investment securities transferred from available for sale to held to maturity, fair value	$ 48,000
Investment securities transferred from available for sale to held to maturity, unrealized gain (loss)	$ (3,200)
Available for sale [Abstract]
Total securities available for sale		$ 209,043	$ 244,706
Gross Unrealized Gains		6,368	4,510
Gross Unrealized Losses		(300)	(2,117)
Fair value		215,111	247,099
Held to maturity [Abstract]
Amortized Cost		29,466	61,309
Gross Unrealized Gains		1,545	1,993
Gross Unrealized Losses		0	(30)
Fair Value		31,011	63,272
Total investment securities [Abstract]
Total Amortized Cost		238,509	306,015
Total Gross Unrealized Gains		7,913	6,503
Total Gross Unrealized Losses		(300)	(2,147)
Total Fair Value		246,122	310,371
Investment securities pledged		215,000	261,000
U.S. Government Agency Securities [Member]
Available for sale [Abstract]
Total securities available for sale		5,000	28,977
Gross Unrealized Gains		0	2
Gross Unrealized Losses		0	(463)
Fair value		5,000	28,516
Obligations of States and Political Subdivisions [Member]
Available for sale [Abstract]
Total securities available for sale		81,396	100,215
Gross Unrealized Gains		4,000	4,467
Gross Unrealized Losses		0	0
Fair value		85,396	104,682
Collateralized Mortgage Obligations [Member]
Available for sale [Abstract]
Total securities available for sale		18,945	15,795
Gross Unrealized Gains		179	2
Gross Unrealized Losses		(15)	(248)
Fair value		19,109	15,549
Mortgage-Backed Securities [Member]
Available for sale [Abstract]
Total securities available for sale		94,702	93,719
Gross Unrealized Gains		2,189	39
Gross Unrealized Losses		0	(1,316)
Fair value		96,891	92,442
Corporate Bonds [Member]
Available for sale [Abstract]
Total securities available for sale		9,000	6,000
Gross Unrealized Gains		0	0
Gross Unrealized Losses		(285)	(90)
Fair value		8,715	5,910
U.S. Government Agency Securities [Member]
Held to maturity [Abstract]
Amortized Cost		12,684	43,570
Gross Unrealized Gains		820	1,450
Gross Unrealized Losses		0	0
Fair Value		13,504	45,020
Obligations of States and Political Subdivisions [Member]
Held to maturity [Abstract]
Amortized Cost		10,782	11,739
Gross Unrealized Gains		556	536
Gross Unrealized Losses		0	0
Fair Value		11,338	12,275
Corporate Bonds [Member]
Held to maturity [Abstract]
Amortized Cost		6,000	6,000
Gross Unrealized Gains		169	7
Gross Unrealized Losses		0	(30)
Fair Value		$ 6,169	$ 5,977