LOANS (Details 16) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	Jun. 30, 2017		Dec. 31, 2016		Jun. 30, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	$ 25,250	$ 21,482	$ 23,920	$ 21,062	$ 21,062
Provision for loan losses	2,205	889	4,041	1,570	4,091
Loans charged off	(3,284)	(1,376)	(4,386)	(3,190)	(6,327)
Recoveries of loans previously charged off	930	739	1,526	2,292	5,094
Ending balance, Allowance	25,101	21,734	25,101	21,734	23,920
Loans individually evaluated for impairment, Allowance						$ 6,021	[1]	$ 6,407	[2]	$ 5,550	[3]
Loans collectively evaluated for impairment, Allowance						19,080		17,513		16,184
Balance, Allowance	25,250	21,482	23,920	21,062	23,920	25,101		23,920		21,734
Individually evaluated for impairment, Loan						50,666	[1]	60,421	[2]	66,250	[3]
Collectively evaluated for impairment, Loan						5,491,980		5,055,371		4,383,132
Acquired with deteriorated credit quality, Loan						128,195		148,534		173,749
Ending balance, Loan						5,670,841		5,264,326		4,623,131
Commercial Financial And Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	2,798	1,599	2,192	1,144	1,144
Provision for loan losses	984	522	1,625	1,310	2,647
Loans charged off	(701)	(541)	(805)	(947)	(1,999)
Recoveries of loans previously charged off	221	87	290	160	400
Ending balance, Allowance	3,302	1,667	3,302	1,667	2,192
Loans individually evaluated for impairment, Allowance						691	[1]	120	[2]	137	[3]
Loans collectively evaluated for impairment, Allowance						2,611		2,072		1,530
Balance, Allowance	2,798	1,599	2,192	1,144	2,192	3,302		2,192		1,667
Individually evaluated for impairment, Loan						2,418	[1]	501	[2]	819	[3]
Collectively evaluated for impairment, Loan						1,216,215		966,637		563,524
Acquired with deteriorated credit quality, Loan						0		0		0
Ending balance, Loan						1,218,633		967,138		564,343
Real Estate Construction And Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	3,597	3,925	2,990	5,009	5,009
Provision for loan losses	102	(438)	742	(1,489)	(1,921)
Loans charged off	(41)	(109)	(94)	(264)	(588)
Recoveries of loans previously charged off	98	221	118	343	490
Ending balance, Allowance	3,756	3,599	3,756	3,599	2,990
Loans individually evaluated for impairment, Allowance						174	[1]	266	[2]	690	[3]
Loans collectively evaluated for impairment, Allowance						3,582		2,724		2,909
Balance, Allowance	3,597	3,925	2,990	5,009	2,990	3,756		2,990		3,599
Individually evaluated for impairment, Loan						636	[1]	659	[2]	1,465	[3]
Collectively evaluated for impairment, Loan						486,222		362,386		273,252
Acquired with deteriorated credit quality, Loan						0		0		0
Ending balance, Loan						486,858		363,045		274,717
Real estate - commercial & farmland [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	7,879	7,099	7,662	7,994	7,994
Provision for loan losses	255	664	472	(5)	107
Loans charged off	(386)	(361)	(395)	(708)	(708)
Recoveries of loans previously charged off	121	57	130	178	269
Ending balance, Allowance	7,869	7,459	7,869	7,459	7,662
Loans individually evaluated for impairment, Allowance						1,437	[1]	1,502	[2]	997	[3]
Loans collectively evaluated for impairment, Allowance						6,432		6,160		6,462
Balance, Allowance	7,879	7,099	7,662	7,994	7,662	7,869		7,662		7,459
Individually evaluated for impairment, Loan						10,814	[1]	12,423	[2]	11,870	[3]
Collectively evaluated for impairment, Loan						1,508,188		1,393,796		1,236,710
Acquired with deteriorated credit quality, Loan						0		0		0
Ending balance, Loan						1,519,002		1,406,219		1,248,580
Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	5,840	4,631	6,786	4,760	4,760
Provision for loan losses	655	(259)	(136)	(234)	2,757
Loans charged off	(963)	(123)	(1,179)	(591)	(1,122)
Recoveries of loans previously charged off	73	14	134	328	391
Ending balance, Allowance	5,605	4,263	5,605	4,263	6,786
Loans individually evaluated for impairment, Allowance						1,748	[1]	2,893	[2]	2,339	[3]
Loans collectively evaluated for impairment, Allowance						3,857		3,893		1,924
Balance, Allowance	5,840	4,631	6,786	4,760	6,786	5,605		6,786		4,263
Individually evaluated for impairment, Loan						8,282	[1]	12,697	[2]	10,345	[3]
Collectively evaluated for impairment, Loan						848,787		768,321		669,888
Acquired with deteriorated credit quality, Loan						0		0		0
Ending balance, Loan						857,069		781,018		680,233
Consumer installment loans and Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	854	1,939	827	1,574	1,574
Provision for loan losses	695	264	869	663	(523)
Loans charged off	(438)	(59)	(602)	(118)	(351)
Recoveries of loans previously charged off	44	16	61	41	127
Ending balance, Allowance	1,155	2,160	1,155	2,160	827
Loans individually evaluated for impairment, Allowance						0	[1]	0	[2]	0	[3]
Loans collectively evaluated for impairment, Allowance						1,155		827		2,160
Balance, Allowance	854	1,939	827	1,574	827	1,155		827		2,160
Individually evaluated for impairment, Loan						0	[1]	0	[2]	0	[3]
Collectively evaluated for impairment, Loan						148,666		109,401		51,198
Acquired with deteriorated credit quality, Loan						0		0		0
Ending balance, Loan						148,666		109,401		51,198
Purchased Loan Pools [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	2,086	1,306	1,837	581	581
Provision for loan losses	(463)	(107)	(214)	618	1,256
Loans charged off	0	0	0	0	0
Recoveries of loans previously charged off	0	0	0	0	0
Ending balance, Allowance	1,623	1,199	1,623	1,199	1,837
Loans individually evaluated for impairment, Allowance						180	[1]	0	[2]	0	[3]
Loans collectively evaluated for impairment, Allowance						1,443		1,837		1,199
Balance, Allowance	2,086	1,306	1,837	581	1,837	1,623		1,837		1,199
Individually evaluated for impairment, Loan						918	[1]	0	[2]	0	[3]
Collectively evaluated for impairment, Loan						489,196		568,314		610,425
Acquired with deteriorated credit quality, Loan						0		0		0
Ending balance, Loan						490,114		568,314		610,425
Purchased Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance, Allowance	2,196	983	1,626	0	0
Provision for loan losses	(23)	243	683	707	(232)
Loans charged off	(755)	(183)	(1,311)	(562)	(1,559)
Recoveries of loans previously charged off	373	344	793	1,242	3,417
Ending balance, Allowance	1,791	1,387	1,791	1,387	1,626
Loans individually evaluated for impairment, Allowance						1,791	[1]	1,626	[2]	1,387	[3]
Loans collectively evaluated for impairment, Allowance						0		0		0
Balance, Allowance	$ 2,196	$ 983	$ 1,626	$ 0	$ 1,626	1,791		1,626		1,387
Individually evaluated for impairment, Loan						27,598	[1]	34,141	[2]	41,751	[3]
Collectively evaluated for impairment, Loan						794,706		886,516		978,135
Acquired with deteriorated credit quality, Loan						128,195		148,534		173,749
Ending balance, Loan						$ 950,499		$ 1,069,191		$ 1,193,635

[1] At June 30, 2017, loans individually evaluated for impairment includes all nonaccrual loans greater than $100,000 and all troubled debt restructurings greater than $100,000, including all troubled debt restructurings and not only those currently classified as troubled debt restructurings.

[2] At December 31, 2016, loans individually evaluated for impairment includes all nonaccrual loans greater than $100,000 and all troubled debt restructurings greater than $100,000, including all troubled debt restructurings and not only those currently classified as troubled debt restructurings.

[3] At June 30, 2016, loans individually evaluated for impairment includes all nonaccrual loans greater than $100,000 and all troubled debt restructurings greater than $100,000, including all troubled debt restructurings and not only those currently classified as troubled debt restructurings.