LOANS AND ALLOWANCE FOR CREDIT LOSSES (Details 7) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Beginning balance	$ 34,634	$ 40,429	$ 35,983	$ 41,067
Provision for credit losses	(492)	3,426	(403)	5,502
Losses charged to the allowance	(1,656)	(4,860)	(4,015)	(8,274)
Recoveries credited to the allowance	1,414	236	2,335	936
Ending balance	33,900	39,231	33,900	39,231
Loans valued for impairment:
Individually	47,631	64,481	47,631	64,481
Collectively	1,448,166	1,456,666	1,448,166	1,456,666
Total	1,495,797	1,521,147	1,495,797	1,521,147	1,501,301
Unallocated Financing Receivables [Member]
Beginning balance	4,489	5,660	4,386	6,161
Provision for credit losses	(604)	(240)	(501)	(741)
Losses charged to the allowance	0	0	0	0
Recoveries credited to the allowance	0	0	0	0
Ending balance	3,885	5,420	3,885	5,420
Loans valued for impairment:
Individually	0	0	0	0
Collectively	0	0	0	0
Total	0	0	0	0
Construction Loans [Member]
Beginning balance	2,303	3,989	2,490	4,474
Provision for credit losses	134	(733)	(52)	(842)
Losses charged to the allowance	0	(866)	(3)	(1,242)
Recoveries credited to the allowance	29	5	31	5
Ending balance	2,466	2,395	2,466	2,395
Loans valued for impairment:
Individually	5,686	8,637	5,686	8,637
Collectively	38,340	23,797	38,340	23,797
Total	44,026	32,434	44,026	32,434	30,162
Commercial Loan [Member]
Beginning balance	6,869	8,735	7,746	8,541
Provision for credit losses	55	(556)	(827)	(99)
Losses charged to the allowance	(379)	(460)	(1,014)	(1,221)
Recoveries credited to the allowance	156	139	796	637
Ending balance	6,701	7,858	6,701	7,858
Loans valued for impairment:
Individually	6,642	9,443	6,642	9,443
Collectively	286,001	288,374	286,001	288,374
Total	292,643	297,817	292,643	297,817	299,766
Mortgage Loans On Real Estate [Member]
Beginning balance	8,067	8,137	8,461	8,156
Provision for credit losses	1,003	3,116	1,685	4,470
Losses charged to the allowance	(476)	(2,531)	(1,715)	(4,016)
Recoveries credited to the allowance	48	18	211	130
Ending balance	8,642	8,740	8,642	8,740
Loans valued for impairment:
Individually	14,121	21,336	14,121	21,336
Collectively	294,770	315,388	294,770	315,388
Total	308,891	336,724	308,891	336,724	324,994
Commercial Real Estate [Member]
Beginning balance	11,840	12,790	11,833	12,462
Provision for credit losses	(1,145)	1,605	(1,097)	2,259
Losses charged to the allowance	(549)	(564)	(611)	(893)
Recoveries credited to the allowance	1,129	3	1,150	6
Ending balance	11,275	13,834	11,275	13,834
Loans valued for impairment:
Individually	21,097	25,064	21,097	25,064
Collectively	816,318	814,601	816,318	814,601
Total	837,415	839,665	837,415	839,665	832,767
Consumer Loan [Member]
Beginning balance	1,066	1,118	1,067	1,273
Provision for credit losses	65	234	389	455
Losses charged to the allowance	(252)	(439)	(672)	(902)
Recoveries credited to the allowance	52	71	147	158
Ending balance	931	984	931	984
Loans valued for impairment:
Individually	85	1	85	1
Collectively	12,737	14,506	12,737	14,506
Total	$ 12,822	$ 14,507	$ 12,822	$ 14,507	$ 13,612