FAIR VALUE MEASUREMENTS - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Non-recurring basis - Impaired Loans - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Fair value measurements
Adjustments to Fair Value	$ (7)	$ (7)
Level 3
Fair value measurements
Assets at Fair Value	78	78
Total Assets at Fair Value
Fair value measurements
Assets at Fair Value	$ 78	$ 78