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LOANS (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Classifications of loans
Total loans	$ 2,521,404		$ 2,407,522
Net deferred loan costs and fees	3,522		3,252
Loans	2,524,926		2,410,774
Allowance for loan losses	(22,708)	$ (21,799)	(20,744)	$ (18,818)	$ (18,260)	$ (17,637)
Loans, net	2,502,218		2,390,030
Commercial real estate \| Mortgage loans
Classifications of loans
Total loans	1,016,322		999,474
Allowance for loan losses	(7,632)	(7,446)	(7,850)	(7,166)	(6,990)	(6,994)
Multi-family \| Mortgage loans
Classifications of loans
Total loans	427,277		350,793
Allowance for loan losses	(5,287)	(4,669)	(4,208)	(3,015)	(2,980)	(2,670)
Residential real estate \| Mortgage loans
Classifications of loans
Total loans	452,370		446,740
Allowance for loan losses	(2,753)	(2,698)	(2,115)	(1,989)	(2,137)	(2,208)
Commercial and Industrial
Classifications of loans
Total loans	511,517		501,766
Allowance for loan losses	(5,771)	(5,568)	(5,405)	(5,273)	(4,905)	(4,526)
Real estate construction and land loans
Classifications of loans
Total loans	96,683		91,153
Allowance for loan losses	(1,131)	(1,277)	(1,030)	(1,236)	(1,106)	(1,104)
Installment/consumer loans
Classifications of loans
Total loans	17,235		17,596
Allowance for loan losses	$ (134)	$ (141)	$ (136)	$ (139)	$ (142)	$ (135)