LOANS AND ALLOWANCE FOR LOAN LOSSES (Troubled Debt Restructurings on Nonperforming Financing Receivables) (Details) (Nonperforming Troubled Debt Restructurings [Member], USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Modifications [Line Items]
Total nonperforming troubled debt restructurings	$ 25,244	$ 26,455
Commercial, financial and agricultural [Member]
Financing Receivable, Modifications [Line Items]
Total nonperforming troubled debt restructurings	35	243
Real estate construction and development [Member]
Financing Receivable, Modifications [Line Items]
Total nonperforming troubled debt restructurings	2,784	2,788
One-to-four-family residential [Member]
Financing Receivable, Modifications [Line Items]
Total nonperforming troubled debt restructurings	3,378	4,003
Multi-family residential [Member]
Financing Receivable, Modifications [Line Items]
Total nonperforming troubled debt restructurings	18,676	19,050
Commercial real estate [Member]
Financing Receivable, Modifications [Line Items]
Total nonperforming troubled debt restructurings	$ 371	$ 371