LOANS (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Classifications of loans
Total loans	$ 3,197,177	$ 3,098,253
Net deferred loan costs and fees	4,720	4,499
Total loans held for investment	3,201,897	3,102,752
Allowance for loan losses	(32,812)	(31,707)	$ (26,618)	$ (25,904)
Loans, net	3,169,085	3,071,045
Commercial real estate \| Mortgage loans
Classifications of loans
Total loans	1,339,992	1,293,906
Allowance for loan losses	(11,334)	(11,048)	(8,357)	(9,225)
Multi-family \| Mortgage loans
Classifications of loans
Total loans	601,747	595,280
Allowance for loan losses	(3,002)	(4,521)	(6,480)	(6,264)
Residential real estate \| Mortgage loans
Classifications of loans
Total loans	493,153	464,264
Allowance for loan losses	(3,495)	(2,438)	(1,415)	(1,495)
Commercial, industrial and agricultural loans
Classifications of loans
Total loans	638,711	616,003
Allowance for loan losses	(14,055)	(12,838)	(9,198)	(7,837)
Real estate construction and land loans
Classifications of loans
Total loans	104,496	107,759
Allowance for loan losses	(821)	(740)	(1,058)	(955)
Installment/consumer loans
Classifications of loans
Total loans	19,078	21,041
Allowance for loan losses	$ (105)	$ (122)	$ (110)	$ (128)

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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