LOAN AND LEASES (3) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Dec. 31, 2011
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	$ 176,139	$ 176,139	$ 234,923
Unpaid Balance of Impaired Loans	225,581	225,581	287,099
Related Allowance for Credit Losses	18,205	18,205	39,708
Average Recorded Investment	189,554	207,785	309,604
Interest Income Recognized	357	1,148	5,049
Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	87,753	87,753	128,179
Unpaid Balance of Impaired Loans	113,871	113,871	157,208
Related Allowance for Credit Losses	10,179	10,179	21,581
Average Recorded Investment	94,462	107,925	188,553
Interest Income Recognized	148	534	2,592
Construction, acquisition and development [Member] | Multi-family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	0	0	1,067
Unpaid Balance of Impaired Loans	0	0	2,259
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	0	0	6,045
Interest Income Recognized	0	0	18
Construction, acquisition and development [Member] | One-to-four family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	12,899	12,899	13,244
Unpaid Balance of Impaired Loans	18,229	18,229	15,396
Related Allowance for Credit Losses	867	867	1,589
Average Recorded Investment	13,587	12,635	14,603
Interest Income Recognized	20	55	202
Construction, acquisition and development [Member] | Recreation and all other loans collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	1,154	1,154	372
Unpaid Balance of Impaired Loans	1,345	1,345	545
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	893	543	762
Interest Income Recognized	1	4	11
Construction, acquisition and development [Member] | Commercial construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	6,709	6,709	5,020
Unpaid Balance of Impaired Loans	7,619	7,619	6,045
Related Allowance for Credit Losses	950	950	886
Average Recorded Investment	4,977	4,331	16,952
Interest Income Recognized	22	44	209
Construction, acquisition and development [Member] | Commercial acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	20,134	20,134	22,221
Unpaid Balance of Impaired Loans	25,692	25,692	27,583
Related Allowance for Credit Losses	1,226	1,226	1,418
Average Recorded Investment	20,363	22,666	33,605
Interest Income Recognized	26	99	528
Construction, acquisition and development [Member] | Residential acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	46,857	46,857	86,255
Unpaid Balance of Impaired Loans	60,986	60,986	105,380
Related Allowance for Credit Losses	7,136	7,136	17,688
Average Recorded Investment	54,642	67,750	116,586
Interest Income Recognized	79	332	1,624
Commercial and industrial segment [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	6,219	6,219	7,833
Unpaid Balance of Impaired Loans	8,086	8,086	10,155
Related Allowance for Credit Losses	2,025	2,025	4,071
Average Recorded Investment	9,420	9,039	7,437
Interest Income Recognized	19	49	127
Real estate [Member] | Consumer mortgages [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	15,854	15,854	31,793
Unpaid Balance of Impaired Loans	19,574	19,574	35,762
Related Allowance for Credit Losses	1,338	1,338	4,386
Average Recorded Investment	17,597	24,525	34,588
Interest Income Recognized	27	138	720
Real estate [Member] | Home equity [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	1,638	1,638	675
Unpaid Balance of Impaired Loans	1,782	1,782	1,047
Related Allowance for Credit Losses	363	363	48
Average Recorded Investment	1,616	1,387	1,045
Interest Income Recognized	2	7	4
Real estate [Member] | Agricultural [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	5,562	5,562	3,096
Unpaid Balance of Impaired Loans	7,205	7,205	4,223
Related Allowance for Credit Losses	331	331	380
Average Recorded Investment	5,793	4,900	5,666
Interest Income Recognized	6	14	38
Real estate [Member] | Commercial and industrial-owner occupied [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	20,989	20,989	24,801
Unpaid Balance of Impaired Loans	27,081	27,081	30,276
Related Allowance for Credit Losses	696	696	3,601
Average Recorded Investment	21,884	23,720	21,927
Interest Income Recognized	43	128	331
Real estate [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	87,753	87,753	128,179
Unpaid Balance of Impaired Loans	113,871	113,871	157,208
Related Allowance for Credit Losses	10,179	10,179	21,581
Average Recorded Investment	94,462	107,925	188,553
Interest Income Recognized	148	534	2,592
Real estate [Member] | Commercial Real Estate [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	37,202	37,202	36,122
Unpaid Balance of Impaired Loans	46,597	46,597	45,620
Related Allowance for Credit Losses	3,213	3,213	5,324
Average Recorded Investment	37,848	35,281	47,912
Interest Income Recognized	109	270	1,162
All other receivables [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	922	922	2,424
Unpaid Balance of Impaired Loans	1,385	1,385	2,808
Related Allowance for Credit Losses	60	60	317
Average Recorded Investment	934	1,008	2,476
Interest Income Recognized	3	8	75
With no related allowance [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	106,348	106,348	117,217
Unpaid Balance of Impaired Loans	148,958	148,958	154,678
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	105,849	107,804	167,615
Interest Income Recognized	158	494	2,000
With no related allowance [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	47,064	47,064	69,843
Unpaid Balance of Impaired Loans	71,083	71,083	89,782
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	52,384	57,826	107,596
Interest Income Recognized	66	226	941
With no related allowance [Member] | Construction, acquisition and development [Member] | Multi-family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	0	0	1,067
Unpaid Balance of Impaired Loans	0	0	2,259
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	0	0	5,474
Interest Income Recognized	0	0	18
With no related allowance [Member] | Construction, acquisition and development [Member] | One-to-four family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	9,110	9,110	7,931
Unpaid Balance of Impaired Loans	14,174	14,174	9,313
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	8,632	7,986	9,269
Interest Income Recognized	10	31	94
With no related allowance [Member] | Construction, acquisition and development [Member] | Recreation and all other loans collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	1,154	1,154	372
Unpaid Balance of Impaired Loans	1,345	1,345	545
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	751	495	491
Interest Income Recognized	1	4	9
With no related allowance [Member] | Construction, acquisition and development [Member] | Commercial construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	5,727	5,727	633
Unpaid Balance of Impaired Loans	6,637	6,637	917
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	3,902	2,866	9,663
Interest Income Recognized	17	34	83
With no related allowance [Member] | Construction, acquisition and development [Member] | Commercial acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	13,819	13,819	17,130
Unpaid Balance of Impaired Loans	19,296	19,296	19,855
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	12,049	12,518	20,640
Interest Income Recognized	10	43	99
With no related allowance [Member] | Construction, acquisition and development [Member] | Residential acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	17,254	17,254	42,710
Unpaid Balance of Impaired Loans	29,631	29,631	56,893
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	27,050	33,961	62,059
Interest Income Recognized	28	114	638
With no related allowance [Member] | Commercial and industrial segment [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	2,827	2,827	4,874
Unpaid Balance of Impaired Loans	4,012	4,012	6,854
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	2,607	2,812	3,879
Interest Income Recognized	0	11	78
With no related allowance [Member] | Real estate [Member] | Consumer mortgages [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	10,147	10,147	16,883
Unpaid Balance of Impaired Loans	12,731	12,731	19,538
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	10,181	12,041	19,628
Interest Income Recognized	18	57	397
With no related allowance [Member] | Real estate [Member] | Home equity [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	940	940	627
Unpaid Balance of Impaired Loans	1,084	1,084	771
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	915	832	541
Interest Income Recognized	1	3	1
With no related allowance [Member] | Real estate [Member] | Agricultural [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	4,202	4,202	1,549
Unpaid Balance of Impaired Loans	4,712	4,712	2,676
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	3,939	3,365	2,502
Interest Income Recognized	2	7	20
With no related allowance [Member] | Real estate [Member] | Commercial and industrial-owner occupied [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	17,932	17,932	6,973
Unpaid Balance of Impaired Loans	23,020	23,020	9,191
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	15,541	12,052	11,598
Interest Income Recognized	29	80	185
With no related allowance [Member] | Real estate [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	47,064	47,064	69,843
Unpaid Balance of Impaired Loans	71,083	71,083	89,782
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	52,384	57,826	107,596
Interest Income Recognized	66	226	941
With no related allowance [Member] | Real estate [Member] | Commercial Real Estate [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	22,316	22,316	15,184
Unpaid Balance of Impaired Loans	30,933	30,933	24,198
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	19,513	18,120	20,702
Interest Income Recognized	40	105	311
With no related allowance [Member] | All other receivables [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	920	920	1,284
Unpaid Balance of Impaired Loans	1,383	1,383	1,668
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	769	756	1,169
Interest Income Recognized	2	5	67
With an allowance [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	69,791	69,791	117,706
Unpaid Balance of Impaired Loans	76,623	76,623	132,421
Related Allowance for Credit Losses	18,205	18,205	39,708
Average Recorded Investment	83,705	99,981	141,989
Interest Income Recognized	199	654	3,049
With an allowance [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	40,689	40,689	58,336
Unpaid Balance of Impaired Loans	42,788	42,788	67,426
Related Allowance for Credit Losses	10,179	10,179	21,581
Average Recorded Investment	42,078	50,099	80,957
Interest Income Recognized	82	308	1,651
With an allowance [Member] | Construction, acquisition and development [Member] | Multi-family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	0	0	0
Unpaid Balance of Impaired Loans	0	0	0
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	0	0	571
Interest Income Recognized	0	0	0
With an allowance [Member] | Construction, acquisition and development [Member] | One-to-four family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,789	3,789	5,313
Unpaid Balance of Impaired Loans	4,055	4,055	6,083
Related Allowance for Credit Losses	867	867	1,589
Average Recorded Investment	4,955	4,649	5,334
Interest Income Recognized	10	24	108
With an allowance [Member] | Construction, acquisition and development [Member] | Recreation and all other loans collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	0	0	0
Unpaid Balance of Impaired Loans	0	0	0
Related Allowance for Credit Losses	0	0	0
Average Recorded Investment	142	48	271
Interest Income Recognized	0	0	2
With an allowance [Member] | Construction, acquisition and development [Member] | Commercial construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	982	982	4,387
Unpaid Balance of Impaired Loans	982	982	5,128
Related Allowance for Credit Losses	950	950	886
Average Recorded Investment	1,075	1,465	7,289
Interest Income Recognized	5	10	126
With an allowance [Member] | Construction, acquisition and development [Member] | Commercial acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	6,315	6,315	5,091
Unpaid Balance of Impaired Loans	6,396	6,396	7,728
Related Allowance for Credit Losses	1,226	1,226	1,418
Average Recorded Investment	8,314	10,148	12,965
Interest Income Recognized	16	56	429
With an allowance [Member] | Construction, acquisition and development [Member] | Residential acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	29,603	29,603	43,545
Unpaid Balance of Impaired Loans	31,355	31,355	48,487
Related Allowance for Credit Losses	7,136	7,136	17,688
Average Recorded Investment	27,592	33,789	54,527
Interest Income Recognized	51	218	986
With an allowance [Member] | Commercial and industrial segment [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,392	3,392	2,959
Unpaid Balance of Impaired Loans	4,074	4,074	3,301
Related Allowance for Credit Losses	2,025	2,025	4,071
Average Recorded Investment	6,813	6,227	3,558
Interest Income Recognized	19	38	49
With an allowance [Member] | Real estate [Member] | Consumer mortgages [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	5,707	5,707	14,910
Unpaid Balance of Impaired Loans	6,843	6,843	16,224
Related Allowance for Credit Losses	1,338	1,338	4,386
Average Recorded Investment	7,416	12,484	14,960
Interest Income Recognized	9	81	323
With an allowance [Member] | Real estate [Member] | Home equity [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	698	698	48
Unpaid Balance of Impaired Loans	698	698	276
Related Allowance for Credit Losses	363	363	48
Average Recorded Investment	701	555	504
Interest Income Recognized	1	4	3
With an allowance [Member] | Real estate [Member] | Agricultural [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	1,360	1,360	1,547
Unpaid Balance of Impaired Loans	2,493	2,493	1,547
Related Allowance for Credit Losses	331	331	380
Average Recorded Investment	1,854	1,535	3,164
Interest Income Recognized	4	7	18
With an allowance [Member] | Real estate [Member] | Commercial and industrial-owner occupied [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,057	3,057	17,828
Unpaid Balance of Impaired Loans	4,061	4,061	21,085
Related Allowance for Credit Losses	696	696	3,601
Average Recorded Investment	6,343	11,668	10,329
Interest Income Recognized	14	48	146
With an allowance [Member] | Real estate [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	40,689	40,689	58,336
Unpaid Balance of Impaired Loans	42,788	42,788	67,426
Related Allowance for Credit Losses	10,179	10,179	21,581
Average Recorded Investment	42,078	50,099	80,957
Interest Income Recognized	82	308	1,651
With an allowance [Member] | Real estate [Member] | Commercial Real Estate [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	14,886	14,886	20,938
Unpaid Balance of Impaired Loans	15,664	15,664	21,422
Related Allowance for Credit Losses	3,213	3,213	5,324
Average Recorded Investment	18,335	17,161	27,210
Interest Income Recognized	69	165	851
With an allowance [Member] | All other receivables [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	2	2	1,140
Unpaid Balance of Impaired Loans	2	2	1,140
Related Allowance for Credit Losses	60	60	317
Average Recorded Investment	165	252	1,307
Interest Income Recognized	$ 1	$ 3	$ 8