IMPAIRED LOANS AND VALUATION ALLOWANCE FOR LOAN LOSSES - Company's Average Recorded Investments in Impaired Loans and Related Interest Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Average Recorded Investment
Total	$ 52,232	$ 80,727
Interest Income Recognized
Total	568	480
Construction and Land Development [Member]
Average Recorded Investment
Impaired Loans with No Related Allowance Recorded	2,357	1,675
Impaired Loans with an Allowance Recorded	1,256	2,196
Total	3,613	3,871
Interest Income Recognized
Impaired Loans with No Related Allowance Recorded	27	25
Impaired Loans with an Allowance Recorded	13	6
Total	40	31
Commercial Real Estate [Member]
Average Recorded Investment
Impaired Loans with No Related Allowance Recorded	3,240	10,806
Impaired Loans with an Allowance Recorded	8,753	26,154
Total	11,993	36,960
Interest Income Recognized
Impaired Loans with No Related Allowance Recorded	21	2
Impaired Loans with an Allowance Recorded	151	299
Total	172	301
Residential Real Estate [Member]
Average Recorded Investment
Impaired Loans with No Related Allowance Recorded	12,605	15,338
Impaired Loans with an Allowance Recorded	22,925	23,854
Total	35,530	39,192
Interest Income Recognized
Impaired Loans with No Related Allowance Recorded	127	2
Impaired Loans with an Allowance Recorded	213	140
Total	340	142
Commercial and Financial [Member]
Average Recorded Investment
Impaired Loans with No Related Allowance Recorded	102	0
Impaired Loans with an Allowance Recorded	63	0
Total	165	0
Interest Income Recognized
Impaired Loans with No Related Allowance Recorded	0	0
Impaired Loans with an Allowance Recorded	2	0
Total	2	0
Consumer [Member]
Average Recorded Investment
Impaired Loans with No Related Allowance Recorded	387	178
Impaired Loans with an Allowance Recorded	544	526
Total	931	704
Interest Income Recognized
Impaired Loans with No Related Allowance Recorded	5	0
Impaired Loans with an Allowance Recorded	9	6
Total	$ 14	$ 6