ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Balance In The Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Management) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	$ 53,400,000	$ 45,007,000	$ 32,073,000
Provision for loan losses	2,549,000	13,800,000	23,947,000
Loans charged-off	(5,922,000)	(6,829,000)	(11,742,000)
Recoveries	1,418,000	1,422,000	729,000
Net loans charged-off	(4,504,000)	(5,407,000)	(11,013,000)
Balance December 31,	51,445,000	53,400,000	45,007,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	14,805,000	18,326,000
Collectively evaluated for impairment	36,640,000	35,074,000
Total ending allowance balance	51,445,000	53,400,000	45,007,000
Loans:
Loans individually evaluated for impairment	58,942,000	63,516,000
Loans collectively evaluated for impairment	2,198,578,000	2,170,193,000
Total ending loan balance	2,257,520,000	2,233,709,000
Commercial and Industrial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	22,830,000	21,479,000
Provision for loan losses	1,814,000	3,112,000
Loans charged-off	(3,069,000)	(2,587,000)
Recoveries	767,000	826,000
Net loans charged-off	(2,302,000)	(1,761,000)
Balance December 31,	22,342,000	22,830,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	5,542,000	9,443,000
Collectively evaluated for impairment	16,800,000	13,387,000
Total ending allowance balance	22,342,000	22,830,000
Loans:
Loans individually evaluated for impairment	18,281,000	24,204,000
Loans collectively evaluated for impairment	828,728,000	727,160,000
Total ending loan balance	847,009,000	751,364,000
Commercial Real Estate and Multi-Family Residential Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	23,489,000	15,893,000
Provision for loan losses	(1,772,000)	9,748,000
Loans charged-off	(1,108,000)	(2,514,000)
Recoveries	203,000	362,000
Net loans charged-off	(905,000)	(2,152,000)
Balance December 31,	20,812,000	23,489,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	8,559,000	8,382,000
Collectively evaluated for impairment	12,253,000	15,107,000
Total ending allowance balance	20,812,000	23,489,000
Loans:
Loans individually evaluated for impairment	36,919,000	35,794,000
Loans collectively evaluated for impairment	763,279,000	815,883,000
Total ending loan balance	800,198,000	851,677,000
Agri-business and Agricultural Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	695,000	1,318,000
Provision for loan losses	705,000	(520,000)
Loans charged-off	0	(103,000)
Recoveries	3,000	0
Net loans charged-off	3,000	(103,000)
Balance December 31,	1,403,000	695,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	63,000	213,000
Collectively evaluated for impairment	1,340,000	482,000
Total ending allowance balance	1,403,000	695,000
Loans:
Loans individually evaluated for impairment	797,000	853,000
Loans collectively evaluated for impairment	224,008,000	237,150,000
Total ending loan balance	224,805,000	238,003,000
Other Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	65,000	270,000
Provision for loan losses	(11,000)	(205,000)
Loans charged-off	0	0
Recoveries	186,000	0
Net loans charged-off	186,000	0
Balance December 31,	240,000	65,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	240,000	65,000
Total ending allowance balance	240,000	65,000
Loans:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	56,810,000	58,249,000
Total ending loan balance	56,810,000	58,249,000
Consumer 1-4 Family Mortgage Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	2,322,000	1,694,000
Provision for loan losses	1,552,000	1,632,000
Loans charged-off	(1,340,000)	(1,050,000)
Recoveries	148,000	46,000
Net loans charged-off	(1,192,000)	(1,004,000)
Balance December 31,	2,682,000	2,322,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	607,000	288,000
Collectively evaluated for impairment	2,075,000	2,034,000
Total ending allowance balance	2,682,000	2,322,000
Loans:
Loans individually evaluated for impairment	2,853,000	2,665,000
Loans collectively evaluated for impairment	280,141,000	285,791,000
Total ending loan balance	282,994,000	288,456,000
Other Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	645,000	682,000
Provision for loan losses	258,000	350,000
Loans charged-off	(405,000)	(575,000)
Recoveries	111,000	188,000
Net loans charged-off	(294,000)	(387,000)
Balance December 31,	609,000	645,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	34,000	0
Collectively evaluated for impairment	575,000	645,000
Total ending allowance balance	609,000	645,000
Loans:
Loans individually evaluated for impairment	92,000	0
Loans collectively evaluated for impairment	45,612,000	45,960,000
Total ending loan balance	45,704,000	45,960,000
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance January 1,	3,354,000	3,671,000
Provision for loan losses	3,000	(317,000)
Loans charged-off	0	0
Recoveries	0	0
Net loans charged-off	0	0
Balance December 31,	3,357,000	3,354,000
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,357,000	3,354,000
Total ending allowance balance	3,357,000	3,354,000
Loans:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	0	0
Total ending loan balance	$ 0	$ 0