IMPAIRED LOANS AND VALUATION ALLOWANCE FOR LOAN LOSSES - Activity in Allowance for Loan Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Allowance for Loan Losses:
Beginning Balance	$ 20,068	$ 22,104
Provision for Loan Losses	(735)	953
Charge-Offs	(364)	(1,896)
Recoveries	503	379
Net Charge-Offs	139	(1,517)
Ending Balance	19,472	21,540
Construction and Land Development [Member]
Allowance for Loan Losses:
Beginning Balance	808	1,134
Provision for Loan Losses	(36)	193
Charge-Offs	(3)	(334)
Recoveries	27	115
Net Charge-Offs	24	(219)
Ending Balance	796	1,108
Commercial Real Estate [Member]
Allowance for Loan Losses:
Beginning Balance	6,160	8,849
Provision for Loan Losses	441	49
Charge-Offs	(84)	(529)
Recoveries	236	79
Net Charge-Offs	152	(450)
Ending Balance	6,753	8,448
Residential Real Estate [Member]
Allowance for Loan Losses:
Beginning Balance	11,659	11,090
Provision for Loan Losses	(1,378)	481
Charge-Offs	(112)	(946)
Recoveries	189	97
Net Charge-Offs	77	(849)
Ending Balance	10,358	10,722
Commercial and Financial [Member]
Allowance for Loan Losses:
Beginning Balance	710	468
Provision for Loan Losses	220	70
Charge-Offs	(108)	(60)
Recoveries	31	80
Net Charge-Offs	(77)	20
Ending Balance	853	558
Consumer [Member]
Allowance for Loan Losses:
Beginning Balance	731	563
Provision for Loan Losses	18	160
Charge-Offs	(57)	(27)
Recoveries	20	8
Net Charge-Offs	(37)	(19)
Ending Balance	$ 712	$ 704