LOANS AND LEASES - Aging Analysis of Past Due Payments for Each Loan Portfolio Segment (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	$ 2,635,000	$ 3,659,000
60-89 Days Past Due	1,988,000	510,000
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	21,432,000	38,755,000
Current	318,627,000	371,942,000
Subtotal LHFI	344,682,000	414,866,000	497,405,000
Less: Deferred loan fees	(517,000)	(623,000)
Total LHFI	344,165,000	414,243,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	21,432,000	38,755,000
Total non-accrual LHFI, Specific reserves	2,026,000	138,000
Non-accrual loans held for sale [Abstract]
Total non-accrual LHFS, Loan balance	1,572,000	12,569,000
Non accrual loans held for sale, Specific reserves	0	0
Total non-accrual loans, Loan balance	23,004,000	51,324,000	65,800,000
Total non-accrual loans, Specific Reserves	2,026,000	138,000
Period decrease in nonaccrual loans	28,300,000
Reduction in existing non accrual loan balances	18,400,000
Transfer to other real estate owned	10,800,000
Charge-offs to the allowance for loan and lease losses	8,300,000
Addition of non accrual loan balance	9,200,000
Interest income lost on non-accrual loans	3,100,000	5,100,000	6,500,000
Cash collected on non accrual and impaired loan	23,400,000	29,900,000	21,700,000
Amount credited to principal balance outstanding	21,100,000	29,700,000	21,400,000
Summary of impaired loans [Abstract]
Impaired loans with valuation allowance	9,405,000	1,068,000
Impaired loans without valuation allowance	19,423,000	45,009,000
Impaired LHFS	1,572,000	12,569,000
Total impaired loans	30,400,000	58,646,000
Valuation allowance related to impaired loans	2,026,000	138,000
Average Recorded Investment and Related Interest Income [Abstract]
Average investment in impaired loans and leases	39,412,000	62,936,000	78,225,000
Interest income recognized on impaired loans and leases	366,000	202,000	335,000
Interest income recognized on a cash basis on impaired loans and leases	66,000	202,000	335,000
Construction and Land Development [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	4,280,000	13,014,000
Current	32,935,000	41,106,000
Subtotal LHFI	37,215,000	54,120,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	4,280,000	13,014,000
Total non-accrual LHFI, Specific reserves	820,000	0
Non-accrual loans held for sale [Abstract]
Total non-accrual LHFS, Loan balance	0	8,901,000
Non accrual loans held for sale, Specific reserves	0	0
Percentage of outstanding non-accrual loans (in hundredths)	19.00%
Commercial Real Estate [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	1,548,000	2,837,000
60-89 Days Past Due	1,486,000	100,000
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	10,345,000	16,671,000
Current	153,736,000	162,971,000
Subtotal LHFI	167,115,000	182,579,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	10,345,000	16,671,000
Total non-accrual LHFI, Specific reserves	835,000	0
Non-accrual loans held for sale [Abstract]
Total non-accrual LHFS, Loan balance	1,572,000	3,634,000
Non accrual loans held for sale, Specific reserves	0	0
Percentage of outstanding non-accrual loans (in hundredths)	52.00%
Commercial and Industrial [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	200,000	148,000
60-89 Days Past Due	0	0
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	4,961,000	4,720,000
Current	35,399,000	49,268,000
Subtotal LHFI	40,560,000	54,136,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	4,961,000	4,720,000
Total non-accrual LHFI, Specific reserves	255,000	0
Non-accrual loans held for sale [Abstract]
Percentage of outstanding non-accrual loans (in hundredths)	22.00%
Residential Real Estate [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	562,000	527,000
60-89 Days Past Due	486,000	382,000
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	994,000	1,139,000
Current	22,939,000	24,589,000
Subtotal LHFI	24,981,000	26,637,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	994,000	1,139,000
Total non-accrual LHFI, Specific reserves	14,000	24,000
Non-accrual loans held for sale [Abstract]
Total non-accrual LHFS, Loan balance	0	34,000
Non accrual loans held for sale, Specific reserves	0	0
Multi Family [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	0	1,703,000
Current	11,756,000	9,919,000
Subtotal LHFI	11,756,000	11,622,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	0	1,703,000
Total non-accrual LHFI, Specific reserves	0	0
Leases [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	325,000	147,000
60-89 Days Past Due	16,000	28,000
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	251,000	485,000
Current	36,755,000	35,354,000
Subtotal LHFI	37,347,000	36,014,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	251,000	485,000
Total non-accrual LHFI, Specific reserves	55,000	114,000
Tax Certificates [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	601,000	1,023,000
Current	23,968,000	47,786,000
Subtotal LHFI	24,569,000	48,809,000
Non-accrual loans held for investment [Abstract]
Total non-accrual LHFI, loan balance	601,000	1,023,000
Total non-accrual LHFI, Specific reserves	47,000	0
Consumer [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
Accruing 90+Days	0	0
Total non-accrual LHFI, loan balance	0	0
Current	1,139,000	949,000
Subtotal LHFI	$ 1,139,000	$ 949,000