FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2017

FAIR VALUE OF FINANCIAL INSTRUMENTS

Schedule of financial instruments measured at fair value by level within fair value hierarchy

						Significant
				Quoted Prices		other		Significant
				in active		observable		unobservable
				markets		inputs		inputs
Description		Total		(Level 1)		(Level 2)		(Level 3)
September 30, 2017
Money market funds, included in cash equivalents	$	81,026	$	81,026	$	—	$	—
December 31, 2016
Money market funds, included in cash equivalents	$	125,515	$	125,515	$	—	$	—