ASSETS ACQUIRED IN FDIC-ASSISTED ACQUISITIONS (Details 1) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Covered Assets [Line Items]
Covered loans	$ 38,634	$ 61,269
Less: Fair value adjustments	1,910	3,109
Total covered loans	36,724	58,160
OREO	215	1,212
Less: Fair value adjustments	0	4
Total covered OREO	215	1,208
Total covered assets	36,939	59,368
FDIC loss-share receivable			$ 1,197	$ 6,301
FDIC loss-share payable	6,489	6,313
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 payable	(34)	(27)
United Security Bank [Member]
Covered Assets [Line Items]
Covered loans	3,118	3,199
Less: Fair value adjustments	12	13
Total covered loans	3,106	3,186
OREO	0	51
Less: Fair value adjustments	0	0
Total covered OREO	0	51
Total covered assets	3,106	3,237
FDIC loss-share payable	(1,655)	(1,642)
Satilla Community Bank [Member]
Covered Assets [Line Items]
Covered loans	3,989	4,019
Less: Fair value adjustments	36	51
Total covered loans	3,953	3,968
OREO	0	0
Less: Fair value adjustments	0	0
Total covered OREO	0	0
Total covered assets	3,953	3,968
FDIC loss-share payable	(19)	(32)
First Bank of Jacksonville [Member]
Covered Assets [Line Items]
Covered loans	3,714	3,767
Less: Fair value adjustments	433	452
Total covered loans	3,281	3,315
OREO	0	0
Less: Fair value adjustments	0	0
Total covered OREO	0	0
Total covered assets	3,281	3,315
FDIC loss-share payable	(255)	(234)
Darby Bank and Trust [Member]
Covered Assets [Line Items]
Covered loans	11,655	12,166
Less: Fair value adjustments	486	565
Total covered loans	11,169	11,601
OREO	0	0
Less: Fair value adjustments	0	0
Total covered OREO	0	0
Total covered assets	11,169	11,601
FDIC loss-share payable	(4,229)	(4,591)
Tifton Banking Company [Member]
Covered Assets [Line Items]
Covered loans	1,737	1,679
Less: Fair value adjustments	0	0
Total covered loans	1,737	1,679
OREO	0	0
Less: Fair value adjustments	0	0
Total covered OREO	0	0
Total covered assets	1,737	1,679
FDIC loss-share payable	(48)	(33)
High Trust Bank [Member]
Covered Assets [Line Items]
Covered loans	1,899	1,913
Less: Fair value adjustments	30	33
Total covered loans	1,869	1,880
OREO	0	0
Less: Fair value adjustments	0	0
Total covered OREO	0	0
Total covered assets	1,869	1,880
FDIC loss-share receivable	708	734
One Georgia Bank [Member]
Covered Assets [Line Items]
Covered loans	1,068	1,077
Less: Fair value adjustments	32	32
Total covered loans	1,036	1,045
OREO	0	0
Less: Fair value adjustments	0	0
Total covered OREO	0	0
Total covered assets	1,036	1,045
FDIC loss-share payable	(1,040)	(993)
Central Bank of Georgia [Member]
Covered Assets [Line Items]
Covered loans	11,454	33,449
Less: Fair value adjustments	881	1,963
Total covered loans	10,573	31,486
OREO	215	1,161
Less: Fair value adjustments	0	4
Total covered OREO	215	1,157
Total covered assets	10,788	32,643
FDIC loss-share receivable	$ 83	$ 505