FAIR VALUE MEASUREMENT AND FAIR VALUES OF FINANCIAL INSTRUMENTS (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	$ 709,677	$ 709,677	$ 730,591
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value	20,372	20,372	128,957
Loans Measured For Impairment Fair Value			68,466
Other Real Estate Owned Measured For Impairment Fair Value			60,491
Impairment Recognized On Loans Measured For Impairment			15,410
Impairment Recognized On Other Real Estate Owned			4,832
Asset Impairment Charges	2,870	5,748	20,242
Three Months Ended [Member]
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value	20,372	20,372
Loans Measured For Impairment Fair Value	4,934	4,934
Other Real Estate Owned Measured For Impairment Fair Value	15,438	15,438
Impairment Recognized On Loans Measured For Impairment	1,657
Impairment Recognized On Other Real Estate Owned	1,213
Asset Impairment Charges	2,870
Six Months Ended [Member]
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value	39,043	39,043
Loans Measured For Impairment Fair Value	11,929	11,929
Other Real Estate Owned Measured For Impairment Fair Value	27,114	27,114
Impairment Recognized On Loans Measured For Impairment		4,014
Impairment Recognized On Other Real Estate Owned		1,734
Asset Impairment Charges		5,748
Us Treasury Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	200	200	203
Us Government Agencies Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	204,688	204,688	219,631
Corporate Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	8,378	8,378	8,507
Collateralized Mortgage Backed Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	410,083	410,083	428,725
Us States and Political Subdivisions Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	73,630	73,630	60,732
Equity Investments and Other Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	11,905	11,905	12,046
Trading Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	793	793	747
Fair Value, Inputs, Level 1 [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	2,771	2,771	2,727
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value			0
Loans Measured For Impairment Fair Value			0
Other Real Estate Owned Measured For Impairment Fair Value			0
Fair Value, Inputs, Level 1 [Member] | Three Months Ended [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0
Nonrecurring Fair Value Measurements [Abstract]
Loans Measured For Impairment Fair Value	0	0
Other Real Estate Owned Measured For Impairment Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Six Months Ended [Member]
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value	0	0
Loans Measured For Impairment Fair Value	0	0
Other Real Estate Owned Measured For Impairment Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Us Treasury Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 1 [Member] | Us Government Agencies Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 1 [Member] | Corporate Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 1 [Member] | Collateralized Mortgage Backed Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 1 [Member] | Us States and Political Subdivisions Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 1 [Member] | Equity Investments and Other Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	1,978	1,978	1,980
Fair Value, Inputs, Level 1 [Member] | Trading Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	793	793	747
Fair Value, Inputs, Level 2 [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	698,528	698,528	719,357
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value			0
Loans Measured For Impairment Fair Value			0
Other Real Estate Owned Measured For Impairment Fair Value			0
Fair Value, Inputs, Level 2 [Member] | Three Months Ended [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0
Nonrecurring Fair Value Measurements [Abstract]
Loans Measured For Impairment Fair Value	0	0
Other Real Estate Owned Measured For Impairment Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Six Months Ended [Member]
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value	0	0
Loans Measured For Impairment Fair Value	0	0
Other Real Estate Owned Measured For Impairment Fair Value	0	0
Fair Value, Inputs, Level 2 [Member] | Us Treasury Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	200	200	203
Fair Value, Inputs, Level 2 [Member] | Us Government Agencies Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	204,688	204,688	219,631
Fair Value, Inputs, Level 2 [Member] | Corporate Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Backed Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	410,083	410,083	428,725
Fair Value, Inputs, Level 2 [Member] | Us States and Political Subdivisions Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	73,630	73,630	60,732
Fair Value, Inputs, Level 2 [Member] | Equity Investments and Other Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	9,927	9,927	10,066
Fair Value, Inputs, Level 2 [Member] | Trading Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 3 [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	8,378	8,378	8,507
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value			128,957
Loans Measured For Impairment Fair Value			68,466
Other Real Estate Owned Measured For Impairment Fair Value			60,491
Fair Value, Inputs, Level 3 [Member] | Three Months Ended [Member]
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value	20,372	20,372
Loans Measured For Impairment Fair Value	4,934	4,934
Other Real Estate Owned Measured For Impairment Fair Value	15,438	15,438
Fair Value, Inputs, Level 3 [Member] | Six Months Ended [Member]
Nonrecurring Fair Value Measurements [Abstract]
Total nonrecurring fair value measurements, fair value	39,043	39,043
Loans Measured For Impairment Fair Value	11,929	11,929
Other Real Estate Owned Measured For Impairment Fair Value	27,114	27,114
Fair Value, Inputs, Level 3 [Member] | Us Treasury Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 3 [Member] | Us Government Agencies Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 3 [Member] | Corporate Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	8,378	8,378	8,507
Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage Backed Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 3 [Member] | Us States and Political Subdivisions Debt Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 3 [Member] | Equity Investments and Other Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	0	0	0
Fair Value, Inputs, Level 3 [Member] | Trading Securities [Member]
Recurring Fair Value Measurements [Abstract]
Total recurring assets measured at fair value	$ 0	$ 0	$ 0