FAIR VALUE MEASUREMENT (Details 3) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Financial assets:
Cash and cash equivalents	$ 318,267	$ 249,853	$ 201,182	$ 128,684
Interest-bearing deposits with financial institutions	1,245	1,743
Securities available for sale	54,433	40,505
Loans, net	908,463	886,864
Loans held for sale	334	3,245
Other equity securities	8,454	7,759
Accrued interest receivable	3,043	3,002
Cash and cash equivalents, Fair value	318,267	249,853
Interest bearing deposits with financial institutions, Fair value	1,245	1,743
Securities available for sale, Fair value	54,433	40,505
Loans, net, Fair value	905,206	883,361
Loans held for sale, Fair value	334	3,245
Other equity securities, Fair value	8,454	7,759
Accrued interest receivable, Fair value	3,043	3,002
Financial liabilities:
Deposits	1,138,168	1,104,305
Subordinated Debentures	5,417	5,387
Other borrowings	0	6,000
Accrued interest payable	170	141
Deposits, Fair value	1,138,252	1,104,665
Subordinated Debentures, Fair value	5,428	5,387
Other borrowings, Fair value		6,000
Accrued interest payable, Fair value	170	141
Off-balance-sheet liabilities:
Undisbursed loan commitments, lines of credit, standby letters of credit	310	310
Undisbursed loan commitments, lines of credit, standby letters of credit, Fair value	310	310
Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and cash equivalents, Fair value	318,267	249,853
Interest bearing deposits with financial institutions, Fair value	1,245	1,743
Securities available for sale, Fair value	0	0
Loans, net, Fair value	0	0
Loans held for sale, Fair value	0	0
Other equity securities, Fair value	0	0
Accrued interest receivable, Fair value	0	0
Financial liabilities:
Deposits, Fair value	916,881	875,506
Subordinated Debentures, Fair value	0	0
Other borrowings, Fair value		0
Accrued interest payable, Fair value	0	0
Off-balance-sheet liabilities:
Undisbursed loan commitments, lines of credit, standby letters of credit, Fair value	0	0
Fair Value, Inputs, Level 2 [Member]
Financial assets:
Cash and cash equivalents, Fair value	0	0
Interest bearing deposits with financial institutions, Fair value	0	0
Securities available for sale, Fair value	54,433	40,505
Loans, net, Fair value	0	0
Loans held for sale, Fair value	334	3,245
Other equity securities, Fair value	8,454	7,759
Accrued interest receivable, Fair value	3,043	3,002
Financial liabilities:
Deposits, Fair value	221,371	229,159
Subordinated Debentures, Fair value	0	0
Other borrowings, Fair value		0
Accrued interest payable, Fair value	170	141
Off-balance-sheet liabilities:
Undisbursed loan commitments, lines of credit, standby letters of credit, Fair value	0	0
Fair Value, Inputs, Level 3 [Member]
Financial assets:
Cash and cash equivalents, Fair value	0	0
Interest bearing deposits with financial institutions, Fair value	0	0
Securities available for sale, Fair value	0	0
Loans, net, Fair value	905,206	883,361
Loans held for sale, Fair value	0	0
Other equity securities, Fair value	0	0
Accrued interest receivable, Fair value	0	0
Financial liabilities:
Deposits, Fair value		0
Subordinated Debentures, Fair value	5,428	5,387
Other borrowings, Fair value		6,000
Accrued interest payable, Fair value	0	0
Off-balance-sheet liabilities:
Undisbursed loan commitments, lines of credit, standby letters of credit, Fair value	$ 310	$ 310

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Fair value portion of other assets.

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Unused amount of commitments to extend credit to customers.

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