LOANS AND ALLOWANCE FOR LOAN LOSSES (Loan Portfolio Composition) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Commercial, financial and agricultural	$ 645,862	$ 600,704
Real estate construction and development	75,609	121,662
Real estate mortgage:
Real estate mortgage	2,213,321	2,091,026
Consumer and installment	16,840	18,681
Loans held for sale	28,866	25,548
Net deferred loan fees	(921)	(526)
Total loans	2,979,577	2,857,095
One-to-four-family residential [Member]
Real estate mortgage:
Real estate mortgage	997,581	921,488
Multi-family residential [Member]
Real estate mortgage:
Real estate mortgage	126,310	121,304
Total loans	126,310	121,304
Commercial real estate [Member]
Real estate mortgage:
Real estate mortgage	1,089,430	1,048,234
Total loans	$ 1,089,430	$ 1,048,234

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Amount before allowance of installment and revolving loans issued to individuals, including, but not limited to credit card, automobile, boat, student, durable home appliance loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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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.

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Amount classified as mortgage loans attributable to disposal group held for sale or disposed of. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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Amount before allowance of commercial loans to develop land for sale or construction thereon. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Amount before allowance of loans issued to agricultural, commercial and industrial, and financial institutions. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Amount before allowance of mortgage loans on existing land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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