SUBORDINATED DEBENTURES (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) item	Dec. 31, 2016 USD ($)
Subordinated Debentures
Number of separate trusts formed that issued floating rate trust preferred securities | item	4
Investment in the common stock of the trust	$ 1,487	$ 1,239
Maximum period available for deferral of interest payments	5 years
Amount	$ 56,545	41,239
Trust 1
Subordinated Debentures
Amount	$ 8,248	8,248
Variable rate basis	LIBOR
Rate at the end of the period (as a percent)	4.92%
Trust 1 | Libor
Subordinated Debentures
Variable rate margin (as a percent)	3.25%
Trust 2
Subordinated Debentures
Amount	$ 14,433	14,433
Variable rate basis	LIBOR
Rate at the end of the period (as a percent)	4.94%
Trust 2 | Libor
Subordinated Debentures
Variable rate margin (as a percent)	3.25%
Trust 3
Subordinated Debentures
Amount	$ 7,217	7,217
Variable rate basis	LIBOR
Rate at the end of the period (as a percent)	4.74%
Trust 3 | Libor
Subordinated Debentures
Variable rate margin (as a percent)	3.15%
Trust 4
Subordinated Debentures
Amount	$ 11,341	$ 11,341
Variable rate basis	LIBOR
Rate at the end of the period (as a percent)	3.22%
Trust 4 | Libor
Subordinated Debentures
Variable rate margin (as a percent)	1.63%
FCB Trust 1
Subordinated Debentures
Amount	$ 6,995
Variable rate basis	LIBOR
Rate at the end of the period (as a percent)	3.19%
FCB Trust 1 | Libor
Subordinated Debentures
Variable rate margin (as a percent)	1.60%
Private Placement
Subordinated Debentures
Amount	$ 8,311
Variable rate basis	Fixed Rate
Rate at the end of the period (as a percent)	6.00%
Subordinated debentures
Subordinated Debentures
Maturity period	30 years
Period at par after which the debt can be called	5 years