ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Aging Of The Recorded Investment In Past Due Loans) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	$ 4,257	$ 4,225
Greater than 90 Days Past Due	30,875	39,504
Total Past Due	35,132	43,729
Loans Not Past Due	2,222,388	2,189,980
Total ending loan balance	2,257,520	2,233,709
Other Commerical Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	0	0
Greater than 90 Days Past Due	0	0
Total Past Due	0	0
Loans Not Past Due	56,810	58,249
Total ending loan balance	56,810	58,249
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total ending loan balance	847,009	751,364
Commercial and Industrial Loans [Member] | Working Capital Lines Of Credit Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	233	1,051
Greater than 90 Days Past Due	1,899	4,743
Total Past Due	2,132	5,794
Loans Not Past Due	437,705	368,098
Total ending loan balance	439,837	373,892
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	48	21
Greater than 90 Days Past Due	4,862	5,433
Total Past Due	4,910	5,454
Loans Not Past Due	402,262	372,018
Total ending loan balance	407,172	377,472
Commercial Real Estate and Multi-Family Residential Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total ending loan balance	800,198	851,677
Commercial Real Estate and Multi-Family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	998	0
Greater than 90 Days Past Due	398	429
Total Past Due	1,396	429
Loans Not Past Due	80,954	81,650
Total ending loan balance	82,350	82,079
Commercial Real Estate and Multi-Family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	1,023	104
Greater than 90 Days Past Due	2,461	4,371
Total Past Due	3,484	4,475
Loans Not Past Due	354,921	342,068
Total ending loan balance	358,405	346,543
Commercial Real Estate and Multi-Family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	38	0
Greater than 90 Days Past Due	19,200	21,971
Total Past Due	19,238	21,971
Loans Not Past Due	295,243	362,710
Total ending loan balance	314,481	384,681
Commercial Real Estate and Multi-Family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	0	0
Greater than 90 Days Past Due	286	0
Total Past Due	286	0
Loans Not Past Due	44,676	38,374
Total ending loan balance	44,962	38,374
Agri-business and Agricultural Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total ending loan balance	224,805	238,003
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	0	0
Greater than 90 Days Past Due	797	628
Total Past Due	797	628
Loans Not Past Due	108,359	117,619
Total ending loan balance	109,156	118,247
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	0	0
Greater than 90 Days Past Due	0	225
Total Past Due	0	225
Loans Not Past Due	115,649	119,531
Total ending loan balance	115,649	119,756
Consumer 1-4 Family Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total ending loan balance	282,994	288,456
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	1,475	2,569
Greater than 90 Days Past Due	504	1,245
Total Past Due	1,979	3,814
Loans Not Past Due	107,583	102,970
Total ending loan balance	109,562	106,784
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	361	254
Greater than 90 Days Past Due	391	452
Total Past Due	752	706
Loans Not Past Due	161,172	175,517
Total ending loan balance	161,924	176,223
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	0	34
Greater than 90 Days Past Due	0	0
Total Past Due	0	34
Loans Not Past Due	11,508	5,415
Total ending loan balance	11,508	5,449
Other Consumer [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
30 to 89 Days Past Due	81	192
Greater than 90 Days Past Due	77	7
Total Past Due	158	199
Loans Not Past Due	45,546	45,761
Total ending loan balance	$ 45,704	$ 45,960