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		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Average Recorded Investment
Total	$ 49,238	$ 59,995	$ 50,647	$ 70,867
Interest Income Recognized
Total	392	336	1,103	910
Construction and Land Development [Member]
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,088	2,715	2,160	2,382
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,110	1,135	1,244	1,410
Total	3,198	3,850	3,404	3,792
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	29	25	80	79
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	6	15	18	30
Total	35	40	98	109
Commercial Real Estate [Member]
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	3,067	6,475	2,618	8,288
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	11,801	12,203	10,502	20,144
Total	14,868	18,678	13,120	28,432
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	3	4	10	14
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	124	149	485	319
Total	127	153	495	333
Residential Real Estate [Member]
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	10,066	14,281	11,578	14,816
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	20,125	22,478	21,518	23,105
Total	30,191	36,759	33,096	37,921
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	98	4	114	40
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	121	131	370	406
Total	219	135	484	446
Commercial And Financial [Member]
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	150	8	101	3
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	9	0	61	0
Total	159	8	162	3
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	2	0	7	1
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	0
Total	2	0	7	1
Consumer [Member]
Average Recorded Investment
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	276	136	322	140
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	546	564	543	579
Total	822	700	865	719
Interest Income Recognized
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	1	2	1	3
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	8	6	18	18
Total	$ 9	$ 8	$ 19	$ 21