LOANS AND LEASES (Aging of Recorded Investment) (Details) - USD ($)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	$ 21,354,000	$ 44,874,000
Nonaccrual Loans	14,268,000	39,087,000
Loans and Leases Not Past Due	3,190,178,000	2,887,324,000
Total loans and leases	3,211,532,000	2,932,198,000
Interest income recognized on nonaccrual loans, including loans held for sale	500,000	400,000	$ 400,000
Additional interest income that would have been recognized, had nonaccrual loans been accruing interest throughout	1,500,000	4,000,000	4,900,000
Interest income collected and recognized on charged-off loans	800,000	200,000	$ 2,500,000
Commercial, financial & agricultural
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,460,000	13,275,000
Nonaccrual Loans	1,044,000	13,007,000
Loans and Leases Not Past Due	519,626,000	450,488,000
Total loans and leases	521,086,000	463,763,000
Real estate, construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	310,000
Nonaccrual Loans	0	310,000
Loans and Leases Not Past Due	84,885,000	114,244,000
Total loans and leases	84,885,000	114,554,000
Real estate, Mortgage - residential
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	10,509,000	16,505,000
Nonaccrual Loans	6,130,000	13,048,000
Loans and Leases Not Past Due	1,425,796,000	1,265,819,000
Total loans and leases	1,436,305,000	1,282,324,000
Real estate, Mortgage - commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	7,148,000	12,790,000
Nonaccrual Loans	7,094,000	12,722,000
Loans and Leases Not Past Due	753,601,000	690,483,000
Total loans and leases	760,749,000	703,273,000
Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	2,237,000	1,994,000
Nonaccrual Loans	0	0
Loans and Leases Not Past Due	405,242,000	363,150,000
Total loans and leases	407,479,000	365,144,000
Leases
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Nonaccrual Loans	0	0
Loans and Leases Not Past Due	1,028,000	3,140,000
Total loans and leases	1,028,000	3,140,000
30 - 59 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	5,607,000	4,829,000
30 - 59 Days Past Due \| Commercial, financial & agricultural
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	276,000	183,000
30 - 59 Days Past Due \| Real estate, construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
30 - 59 Days Past Due \| Real estate, Mortgage - residential
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	3,834,000	3,078,000
30 - 59 Days Past Due \| Real estate, Mortgage - commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	54,000	68,000
30 - 59 Days Past Due \| Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,443,000	1,500,000
30 - 59 Days Past Due \| Leases
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
60 - 89 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	1,206,000	881,000
60 - 89 Days Past Due \| Commercial, financial & agricultural
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	140,000	85,000
60 - 89 Days Past Due \| Real estate, construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
60 - 89 Days Past Due \| Real estate, Mortgage - residential
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	545,000	379,000
60 - 89 Days Past Due \| Real estate, Mortgage - commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
60 - 89 Days Past Due \| Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	521,000	417,000
60 - 89 Days Past Due \| Leases
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Accruing Loans Greater Than 90 Days Past Due
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Loans Past Due	0	0
Accruing Loans Greater Than 90 Days Past Due	273,000	77,000
Accruing Loans Greater Than 90 Days Past Due \| Commercial, financial & agricultural
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Accruing Loans Greater Than 90 Days Past Due	0	0
Accruing Loans Greater Than 90 Days Past Due \| Real estate, construction
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Accruing Loans Greater Than 90 Days Past Due	0	0
Accruing Loans Greater Than 90 Days Past Due \| Real estate, Mortgage - residential
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Accruing Loans Greater Than 90 Days Past Due	0	0
Accruing Loans Greater Than 90 Days Past Due \| Real estate, Mortgage - commercial
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Accruing Loans Greater Than 90 Days Past Due	0	0
Accruing Loans Greater Than 90 Days Past Due \| Consumer
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Accruing Loans Greater Than 90 Days Past Due	273,000	77,000
Accruing Loans Greater Than 90 Days Past Due \| Leases
Aging Analysis of Accruing and Non-Accruing Loans and Leases
Accruing Loans Greater Than 90 Days Past Due	$ 0	$ 0

Represents the amount of interest income collected and recognized on charged-off loans during the period.

No definition available.

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

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- Definition

Financing receivables that are current.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524

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- Definition

Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

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- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The amount of interest income on impaired and nonperforming loans that is due to the change in present value attributable to the passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5278-111524

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- Definition

Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18794-111554

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

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-Name Accounting Standards Codification
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-Section 50
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