ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Credit Quality Indicators) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	$ 3,470,927	$ 3,080,929
Other Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	98,265	85,071
Other Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	61,183	49,015
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	1,268,458	1,179,693
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	624,362	580,344
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	644,096	599,349
Commercial Real Estate and Multi-family Residential Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	1,299,282	1,128,973
Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	244,411	230,336
Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	469,387	411,711
Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	458,002	407,569
Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	127,482	79,357
Agri-business and Agricultural Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	394,904	306,178
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	172,632	164,382
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	222,272	141,796
Consumer 1-4 Family Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	348,835	331,999
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	162,837	157,761
Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	171,015	164,918
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	14,983	9,320
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	2,980,993	2,625,175
Pass [Member] | Other Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	98,261	85,056
Pass [Member] | Other Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	17,717	13,940
Pass [Member] | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	577,208	538,899
Pass [Member] | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	583,135	549,771
Pass [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	242,964	227,996
Pass [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	444,143	378,847
Pass [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	451,390	394,387
Pass [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	127,219	78,968
Pass [Member] | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	168,660	163,911
Pass [Member] | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	218,581	141,796
Pass [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	44,687	43,231
Pass [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	7,028	8,373
Pass [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	74,274	105,452
Special Mention [Member] | Other Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Special Mention [Member] | Other Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Special Mention [Member] | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	17,636	32,601
Special Mention [Member] | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	32,587	35,910
Special Mention [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	1,447	2,340
Special Mention [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	10,285	23,522
Special Mention [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	4,550	10,953
Special Mention [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	263	0
Special Mention [Member] | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	3,689	0
Special Mention [Member] | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	3,691	0
Special Mention [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	126	126
Special Mention [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Special Mention [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	72,392	35,298
Substandard [Member] | Other Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	12
Substandard [Member] | Other Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	55	60
Substandard [Member] | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	29,396	8,844
Substandard [Member] | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	24,405	10,566
Substandard [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Substandard [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	14,959	9,342
Substandard [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	2,062	2,229
Substandard [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	389
Substandard [Member] | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	283	471
Substandard [Member] | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Substandard [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	1,232	1,769
Substandard [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	1,616
Substandard [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Other Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Other Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Doubtful [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Not Rated [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	343,268	315,004
Not Rated [Member] | Other Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	4	3
Not Rated [Member] | Other Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	43,411	35,015
Not Rated [Member] | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	122	0
Not Rated [Member] | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	3,969	3,102
Not Rated [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Not Rated [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Not Rated [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Not Rated [Member] | Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Not Rated [Member] | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Not Rated [Member] | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	0	0
Not Rated [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	116,792	112,635
Not Rated [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	163,987	154,929
Not Rated [Member] | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	$ 14,983	$ 9,320