LOANS - Contractual Aging of Recorded Investment in Past Due Loans (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	$ 1,844	$ 5,322
Accruing 60-89 Days Past Due	1,462	543
Accruing Greater Than 90 Days	485	213
Nonaccrual	21,056	21,140
Current	1,829,640	1,794,667
Total Financing Receivables	1,854,487	1,821,885
Portfolio Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	1,536	1,511
Accruing 60-89 Days Past Due	1,173	184
Accruing Greater Than 90 Days	179	17
Nonaccrual	16,860	18,563
Current	1,534,496	1,467,730
Total Financing Receivables	1,554,244	1,488,005
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	95
Accruing 60-89 Days Past Due	5	359
Accruing Greater Than 90 Days	114	116
Nonaccrual	2,342	2,572
Current	4,658	4,672
Total Financing Receivables	7,119	7,814
Purchased Unimpaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	308	3,716
Accruing 60-89 Days Past Due	284	0
Accruing Greater Than 90 Days	192	80
Nonaccrual	1,854	5
Current	290,486	322,265
Total Financing Receivables	293,124	326,066
Commercial and Financial [Member] | Portfolio Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	227	232
Accruing 60-89 Days Past Due	149	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	134,845	120,531
Total Financing Receivables	135,221	120,763
Commercial and Financial [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	1,263	1,312
Total Financing Receivables	1,263	1,312
Commercial and Financial [Member] | Purchased Unimpaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	159	953
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	27,407	34,368
Total Financing Receivables	27,566	35,321
Consumer [Member] | Portfolio Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	47	256
Accruing 60-89 Days Past Due	0	25
Accruing Greater Than 90 Days	0	0
Nonaccrual	252	191
Current	55,176	50,071
Total Financing Receivables	55,475	50,543
Consumer [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	1	2
Total Financing Receivables	1	2
Consumer [Member] | Purchased Unimpaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	1,763	2,352
Total Financing Receivables	1,763	2,352
Construction and land development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	100,341	87,036
Construction and land development [Member] | Portfolio Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	361	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	521	534
Current	79,968	65,362
Total Financing Receivables	80,850	65,896
Construction and land development [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	1,346	1,428
Current	126	129
Total Financing Receivables	1,472	1,557
Construction and land development [Member] | Purchased Unimpaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	303
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	48	0
Nonaccrual	0	0
Current	17,971	19,280
Total Financing Receivables	18,019	19,583
Commercial real estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	848,924	837,147
Commercial real estate [Member] | Portfolio Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	686	764
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	2,948	3,457
Current	636,241	606,642
Total Financing Receivables	639,875	610,863
Commercial real estate [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	7
Accruing 60-89 Days Past Due	5	359
Accruing Greater Than 90 Days	0	0
Nonaccrual	729	733
Current	2,950	2,993
Total Financing Receivables	3,684	4,092
Commercial real estate [Member] | Purchased Unimpaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	114	2,318
Accruing 60-89 Days Past Due	284	0
Accruing Greater Than 90 Days	133	41
Nonaccrual	1,850	0
Current	202,984	219,833
Total Financing Receivables	205,365	222,192
Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Financing Receivables	683,598	686,897
Residential Real Estate [Member] | Portfolio Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	215	259
Accruing 60-89 Days Past Due	1,024	159
Accruing Greater Than 90 Days	179	17
Nonaccrual	13,139	14,381
Current	627,931	624,612
Total Financing Receivables	642,488	639,428
Residential Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	88
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	114	116
Nonaccrual	267	411
Current	318	236
Total Financing Receivables	699	851
Residential Real Estate [Member] | Purchased Unimpaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	35	142
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	11	39
Nonaccrual	4	5
Current	40,361	46,432
Total Financing Receivables	40,411	46,618
Other [Member] | Portfolio Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	335	512
Total Financing Receivables	335	512
Other [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	0	0
Total Financing Receivables	0	0
Other [Member] | Purchased Unimpaired Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Accruing 30-59 Days Past Due	0	0
Accruing 60-89 Days Past Due	0	0
Accruing Greater Than 90 Days	0	0
Nonaccrual	0	0
Current	0	0
Total Financing Receivables	$ 0	$ 0