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	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Ending allowance balance attributable to loans:
Individually evaluated for impairment	$ 3,439	$ 3,659
Collectively evaluated for impairment	39,845	39,951
Total ending allowance balance	43,284	43,610	$ 45,677	$ 46,262
Loans:
Loans individually evaluated for impairment	17,418	20,579
Loans collectively evaluated for impairment	3,095,882	3,060,350
Total ending loans balance	3,113,300	3,080,929
Commercial and Industrial Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	2,541	2,781
Collectively evaluated for impairment	17,924	18,783
Total ending allowance balance	20,465	21,564	23,024	22,785
Loans:
Loans individually evaluated for impairment	5,988	8,286
Loans collectively evaluated for impairment	1,199,911	1,171,407
Total ending loans balance	1,205,899	1,179,693
Commercial Real Estate and Multi-Family Residential Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	430	465
Collectively evaluated for impairment	12,322	12,008
Total ending allowance balance	12,752	12,473	13,804	14,153
Loans:
Loans individually evaluated for impairment	9,061	9,823
Loans collectively evaluated for impairment	1,156,427	1,119,150
Total ending loans balance	1,165,488	1,128,973
Agri Business and Agricultural Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	2,454	2,445
Total ending allowance balance	2,454	2,445	1,627	1,790
Loans:
Loans individually evaluated for impairment	471	471
Loans collectively evaluated for impairment	272,752	305,707
Total ending loans balance	273,223	306,178
Other Commercial [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	4	5
Collectively evaluated for impairment	555	569
Total ending allowance balance	559	574	398	276
Loans:
Loans individually evaluated for impairment	12	12
Loans collectively evaluated for impairment	83,600	85,059
Total ending loans balance	83,612	85,071
Consumer 1-4 Family Mortgage Loans [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	415	358
Collectively evaluated for impairment	3,171	3,037
Total ending allowance balance	3,586	3,395	3,313	3,459
Loans:
Loans individually evaluated for impairment	1,827	1,927
Loans collectively evaluated for impairment	330,021	330,072
Total ending loans balance	331,848	331,999
Other Consumer [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	49	50
Collectively evaluated for impairment	295	269
Total ending allowance balance	344	319	430	483
Loans:
Loans individually evaluated for impairment	59	60
Loans collectively evaluated for impairment	53,171	48,955
Total ending loans balance	53,230	49,015
Unallocated [Member]
Ending allowance balance attributable to loans:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	3,124	2,840
Total ending allowance balance	3,124	2,840	$ 3,081	$ 3,316
Loans:
Loans individually evaluated for impairment	0	0
Loans collectively evaluated for impairment	0	0
Total ending loans balance	$ 0	$ 0