FAIR VALUE MEASUREMENT (Tables)

6 Months Ended

Jun. 30, 2018

FAIR VALUE MEASUREMENT

Schedule of financial assets and liabilities measured at fair value on recurring basis

Assets:

	June 30, 2018
	Fair value measurements
	Unaudited
Description	Fair value		Level 1		Level 2			Level 3
Reverse Repurchase Agreements	$	18,604	$	—	$	18,604		$	—
Money Market Funds	172		172		—			—
Total financial assets	$	18,776	$	172	$		18,604	$	—

	December 31, 2017
	Fair value measurements
Description	Fair value		Level 1		Level 2		Level 3
Reverse Repurchase Agreements	$	30,407	$	—	$	30,407	$	—
Money Market Funds	185		185		—		—
Total financial assets	$	30,592	$	185	$	30,407	$	—

Liabilities:

	June 30, 2018
	Fair value measurements
	Unaudited
Description	Fair value			Level 1		Level 2		Level 3
Warrants to purchase Ordinary Shares	$	(18,436	)	$	—	$	—	$	(18,436	)
Total financial liabilities	$	(18,436	)	$	—	$	—	$	(18,436	)

	December 31, 2017
	Fair value measurements
Description	Fair value			Level 1		Level 2		Level 3
Warrants to purchase Ordinary Shares	$	(11,343	)	$	—	$	—	$	(11,343	)
Total financial liabilities	$	(11,343	)	$	—	$	—	$	(11,343	)

Tabular presentation of components of liability associated with warrants to purchase Ordinary Shares

	Fair value of warrants to purchase Ordinary Shares
Balance at January 1, 2018	$	11,343
Increase in the fair value of the warrants (see Note 4)	7,093
Balance at June 30, 2018 (unaudited)	$	18,436