ASSETS ACQUIRED IN FDIC-ASSISTED ACQUISITIONS (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Covered Assets [Line Items]
Covered loans	$ 148,573	$ 296,724
Less: Fair value adjustments	11,044	25,445
Total covered loans	137,529	271,279
OREO	5,938	23,408
Less: Fair value adjustments	927	3,501
Total covered OREO	5,011	19,907
Total covered assets	142,540	291,186
FDIC loss-share receivable (payable)	6,301	31,351	$ 65,441
American United Bank [Member]
Covered Assets [Line Items]
Covered loans	0	0
Less: Fair value adjustments	0	0
Total covered loans	0	0
OREO	0	0
Less: Fair value adjustments	0	0
Total covered OREO	0	0
Total covered assets	0	0
FDIC loss-share receivable (payable)	111	188
United Security Bank [Member]
Covered Assets [Line Items]
Covered loans	3,639	4,350
Less: Fair value adjustments	16	150
Total covered loans	3,623	4,200
OREO	165	165
Less: Fair value adjustments	0	0
Total covered OREO	165	165
Total covered assets	3,788	4,365
FDIC loss-share receivable (payable)	(1,424)	(1,197)
Satilla Community Bank [Member]
Covered Assets [Line Items]
Covered loans	5,228	26,686
Less: Fair value adjustments	124	602
Total covered loans	5,104	26,084
OREO	0	2,849
Less: Fair value adjustments	0	389
Total covered OREO	0	2,460
Total covered assets	5,104	28,544
FDIC loss-share receivable (payable)	149	1,828
First Bank of Jacksonville [Member]
Covered Assets [Line Items]
Covered loans	4,782	21,243
Less: Fair value adjustments	562	1,825
Total covered loans	4,220	19,418
OREO	41	632
Less: Fair value adjustments	0	0
Total covered OREO	41	632
Total covered assets	4,261	20,050
FDIC loss-share receivable (payable)	252	1,885
Darby Bank and Trust [Member]
Covered Assets [Line Items]
Covered loans	15,934	64,338
Less: Fair value adjustments	1,131	6,437
Total covered loans	14,803	57,901
OREO	0	6,655
Less: Fair value adjustments	0	514
Total covered OREO	0	6,141
Total covered assets	14,803	64,042
FDIC loss-share receivable (payable)	(1,084)	6,860
Tifton Banking Company [Member]
Covered Assets [Line Items]
Covered loans	2,159	23,487
Less: Fair value adjustments	11	1,117
Total covered loans	2,148	22,370
OREO	0	2,388
Less: Fair value adjustments	0	367
Total covered OREO	0	2,021
Total covered assets	2,148	24,391
FDIC loss-share receivable (payable)	1,446	3,287
High Trust Bank [Member]
Covered Assets [Line Items]
Covered loans	44,405	52,699
Less: Fair value adjustments	3,881	5,120
Total covered loans	40,524	47,579
OREO	2,433	3,670
Less: Fair value adjustments	643	1,283
Total covered OREO	1,790	2,387
Total covered assets	42,314	49,966
FDIC loss-share receivable (payable)	3,875	6,459
One Georgia Bank [Member]
Covered Assets [Line Items]
Covered loans	27,561	42,971
Less: Fair value adjustments	1,900	3,785
Total covered loans	25,661	39,186
OREO	160	2,244
Less: Fair value adjustments	0	39
Total covered OREO	160	2,205
Total covered assets	25,821	41,391
FDIC loss-share receivable (payable)	913	3,906
Central Bank of Georgia [Member]
Covered Assets [Line Items]
Covered loans	44,865	60,950
Less: Fair value adjustments	3,419	6,409
Total covered loans	41,446	54,541
OREO	3,139	4,805
Less: Fair value adjustments	284	909
Total covered OREO	2,855	3,896
Total covered assets	44,301	58,437
FDIC loss-share receivable (payable)	$ 2,063	$ 8,135