BUSINESS SEGMENTS (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) segments	Mar. 31, 2015 USD ($)
Number of Operating Segments | segments	2
Net interest income	$ 23,410	$ 19,583
Noninterest income	6,263	5,882
Total income	29,673	25,465
Provision for loan losses	1,700	1,350
Salaries and benefits	10,908	9,425
Premises and equipment	2,864	2,616
Other noninterest expense	5,434	3,727
Total noninterest expense	20,906	17,118
INCOME BEFORE INCOME TAX EXPENSE	8,767	8,347
Income tax expense	3,278	3,339
NET INCOME	5,489	5,008
Total assets at period end	3,465,997	2,879,457
Banking [Member]
Net interest income	21,990	18,570
Noninterest income	1,880	1,777
Total income	23,870	20,347
Provision for loan losses	1,700	1,350
Salaries and benefits	8,813	7,540
Premises and equipment	2,637	2,385
Other noninterest expense	3,917	2,495
Total noninterest expense	17,067	13,770
INCOME BEFORE INCOME TAX EXPENSE	6,803	6,577
Income tax expense	2,514	2,651
NET INCOME	4,289	3,926
Total assets at period end	3,415,432	2,853,133
Wealth Management Division [Member]
Net interest income	1,420	1,013
Noninterest income	4,383	4,105
Total income	$ 5,803	$ 5,118
Provision for loan losses
Salaries and benefits	$ 2,095	$ 1,885
Premises and equipment	227	231
Other noninterest expense	1,517	1,232
Total noninterest expense	3,839	3,348
INCOME BEFORE INCOME TAX EXPENSE	1,964	1,770
Income tax expense	764	688
NET INCOME	1,200	1,082
Total assets at period end	$ 53,252	$ 26,324