LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 17) $ in Thousands	Dec. 31, 2016 USD ($) Contract contract	Dec. 31, 2015 USD ($) Contract contract	Dec. 31, 2014 USD ($)
Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	58	60
Troubled debt restructuring loans	$ 14,209	$ 14,418	$ 12,759
Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	22	37
Troubled debt restructuring loans	$ 3,524	$ 2,232
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	15	31
Troubled debt restructuring loans	$ 1,417	$ 2,187	15,500
Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	19	18
Troubled debt restructuring loans	$ 907	$ 1,335
Purchased Non Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 11,004	$ 9,373	$ 1,212
Purchased Non Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	11
Troubled debt restructuring loans	$ 88	$ 883
Commercial Financial And Agricultural [Member] | Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6	7
Troubled debt restructuring loans	$ 58	$ 80
Commercial Financial And Agricultural [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5	3
Troubled debt restructuring loans	$ 51	$ 37
Commercial Financial And Agricultural [Member] | Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	1	1
Troubled debt restructuring loans	$ 76	$ 1
Commercial Financial And Agricultural [Member] | Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	0
Troubled debt restructuring loans	$ 76	$ 0
Commercial Financial And Agricultural [Member] | Purchased Non Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	0	0
Troubled debt restructuring loans	$ 0	$ 0
Real Estate Construction And Development [Member] | Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	2
Troubled debt restructuring loans	$ 250	$ 15
Real Estate Construction And Development [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1	2
Troubled debt restructuring loans	$ 5	$ 33
Real Estate Construction And Development [Member] | Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	0	3
Troubled debt restructuring loans	$ 0	$ 334
Real Estate Construction And Development [Member] | Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	0	0
Troubled debt restructuring loans	$ 0	$ 0
Real Estate Construction And Development [Member] | Purchased Non Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1	2
Troubled debt restructuring loans	$ 9	$ 30
Commercial And Farmland [Member] | Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	4	2
Troubled debt restructuring loans	$ 1,656	$ 2,121
Commercial And Farmland [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5	3
Troubled debt restructuring loans	$ 2,970	$ 624
Commercial And Farmland [Member] | Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	1	3
Troubled debt restructuring loans	$ 468	$ 1,099
Commercial And Farmland [Member] | Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	0	2
Troubled debt restructuring loans	$ 0	$ 145
Commercial And Farmland [Member] | Purchased Non Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	0	2
Troubled debt restructuring loans	$ 0	$ 57
Residential Real Estate [Member] | Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	34	33
Troubled debt restructuring loans	$ 2,495	$ 4,992
Residential Real Estate [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5	20
Troubled debt restructuring loans	$ 460	$ 1,493
Residential Real Estate [Member] | Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	13	23
Troubled debt restructuring loans	$ 873	$ 745
Residential Real Estate [Member] | Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	17	16
Troubled debt restructuring loans	$ 831	$ 1,190
Residential Real Estate [Member] | Purchased Non Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1	6
Troubled debt restructuring loans	$ 79	$ 795
Consumer installment [Member] | Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	12	16
Troubled debt restructuring loans	$ 63	$ 61
Consumer installment [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6	9
Troubled debt restructuring loans	$ 38	$ 45
Consumer installment [Member] | Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	0	1
Troubled debt restructuring loans	$ 0	$ 8
Consumer installment [Member] | Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	0	0
Troubled debt restructuring loans	$ 0	$ 0
Consumer installment [Member] | Purchased Non Covered Loans [Member] | Financing Receivables, 30 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	0	1
Troubled debt restructuring loans	$ 0	$ 1