REVENUE FROM CONTRACTS WITH CUSTOMERS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interchange income	$ 1,251	$ 1,164	$ 1,120
Loss on sale of OREO	(58)	0	5
Cardholder rewards [Memebr]
Interchange income	$ 134	$ 129	$ 124

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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