LOANS (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Classifications of loans
Total loans	$ 3,098,253	$ 2,596,205
Net deferred loan costs and fees	4,499	4,235
Total loans held for investment	3,102,752	2,600,440
Allowance for loan losses	(31,707)	(25,904)	$ (20,744)	$ (17,637)
Loans, net	3,071,045	2,574,536
Commercial real estate \| Mortgage loans
Classifications of loans
Total loans	1,293,906	1,091,752
Allowance for loan losses	(11,048)	(9,225)	(7,850)	(6,994)
Multi-family \| Mortgage loans
Classifications of loans
Total loans	595,280	518,146
Allowance for loan losses	(4,521)	(6,264)	(4,208)	(2,670)
Residential Real Estate \| Mortgage loans
Classifications of loans
Total loans	464,264	364,884
Allowance for loan losses	(2,438)	(1,495)	(2,115)	(2,208)
Commercial, industrial and agricultural loans
Classifications of loans
Total loans	616,003	524,450
Allowance for loan losses	(12,838)	(7,837)	(5,405)	(4,526)
Real estate-construction and land loans
Classifications of loans
Total loans	107,759	80,605
Allowance for loan losses	(740)	(955)	(1,030)	(1,104)
Installment/consumer loans
Classifications of loans
Total loans	21,041	16,368
Allowance for loan losses	$ (122)	$ (128)	$ (136)	$ (135)

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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