LOANS AND ALLOWANCE FOR LOAN LOSSES (Details Textual) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable Individually Evaluated For Impairment	$ 114,078,000	$ 119,483,000
Allowance allocated to Troubled Debt Restructurings	17,079,000	17,952,000
Minimum [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable Individually Evaluated For Impairment	500,000
Troubled Debt Restructurings [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance allocated to Troubled Debt Restructurings	9,000,000	9,500,000
Impaired Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Accumulated Write-downs	92,100,000	103,900,000
Hamp Program [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Troubled Debt Restructurings under HAMP Program	$ 75,200,000	$ 75,700,000