FAIR VALUE MEASUREMENT, Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Carrying Amount [Member]
Financial assets [Abstract]
Cash and cash equivalents	$ 51,571	$ 34,116
FRB and FHLB stock	3,720	3,443
Investment securities	38,117	31,683
Loans, net	714,383	623,355
Financial liabilities [Abstract]
Deposits	697,154	612,236
Other borrowings	55,843	29,000
Fair Value [Member]
Financial assets [Abstract]
Cash and cash equivalents	51,571	34,116
FRB and FHLB stock	3,720	3,443
Investment securities	38,311	31,830
Loans, net	710,271	614,694
Financial liabilities [Abstract]
Deposits	670,435	612,215
Other borrowings	55,842	28,999
Fair Value [Member] | Level 1 [Member]
Financial assets [Abstract]
Cash and cash equivalents	51,571	34,116
FRB and FHLB stock	0	0
Investment securities	146	115
Loans, net	0	0
Financial liabilities [Abstract]
Deposits	0	0
Other borrowings	0	0
Fair Value [Member] | Level 2 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
FRB and FHLB stock	3,720	3,443
Investment securities	38,165	31,715
Loans, net	700,025	599,919
Financial liabilities [Abstract]
Deposits	670,435	612,215
Other borrowings	55,842	28,999
Fair Value [Member] | Level 3 [Member]
Financial assets [Abstract]
Cash and cash equivalents	0	0
FRB and FHLB stock	0	0
Investment securities	0	0
Loans, net	10,246	14,775
Financial liabilities [Abstract]
Deposits	0	0
Other borrowings	0	0
Standby Letters of Credit [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks outstanding	0	0
Unfunded Loan Commitments [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet risks outstanding	$ 70,300	$ 82,900