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 $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Ending allowance balance attributable to loans:
Individually evaluated for impairment	$ 4,651	$ 5,421
Collectively evaluated for impairment	41,026	40,841
Total ending allowance balance	45,677	46,262	46,137	48,797
Loans:
Loans individually evaluated for impairment	30,162	31,964
Loans collectively evaluated for impairment	2,742,051	2,730,356
Total ending loans balance	2,772,213	2,762,320
Commercial and Industrial Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	2,845	3,306
Collectively evaluated for impairment	20,179	19,479
Total ending allowance balance	23,024	22,785	21,730	21,005
Loans:
Loans individually evaluated for impairment	13,460	14,702
Loans collectively evaluated for impairment	1,065,662	1,020,897
Total ending loans balance	1,079,122	1,035,599
Commercial Real Estate and Multi-Family Residential Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	1,273	1,531
Collectively evaluated for impairment	12,531	12,622
Total ending allowance balance	13,804	14,153	15,648	18,556
Loans:
Loans individually evaluated for impairment	12,534	13,005
Loans collectively evaluated for impairment	1,028,420	1,011,858
Total ending loans balance	1,040,954	1,024,863
Agri Business and Agricultural Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	9	14
Collectively evaluated for impairment	1,618	1,776
Total ending allowance balance	1,627	1,790	1,408	1,682
Loans:
Loans individually evaluated for impairment	482	486
Loans collectively evaluated for impairment	215,840	273,388
Total ending loans balance	216,322	273,874
Other Commercial [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	15
Collectively evaluated for impairment	398	261
Total ending allowance balance	398	276	249	391
Loans:
Loans individually evaluated for impairment	0	30
Loans collectively evaluated for impairment	82,473	75,684
Total ending loans balance	82,473	75,714
Consumer 1-4 Family Mortgage Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	450	482
Collectively evaluated for impairment	2,863	2,977
Total ending allowance balance	3,313	3,459	3,064	3,046
Loans:
Loans individually evaluated for impairment	3,566	3,614
Loans collectively evaluated for impairment	301,119	299,189
Total ending loans balance	304,685	302,803
Other Consumer [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	74	73
Collectively evaluated for impairment	356	410
Total ending allowance balance	430	483	549	608
Loans:
Loans individually evaluated for impairment	120	127
Loans collectively evaluated for impairment	48,537	49,340
Total ending loans balance	48,657	49,467
Unallocated [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,081	3,316
Total ending allowance balance	3,081	3,316	3,489	3,509
Loans:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	0	0
Total ending loans balance	$ 0	$ 0