FAIR VALUE OF ASSETS AND LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2015

FAIR VALUE OF ASSETS AND LIABILITIES

Summary of assets and liabilities measured at fair value on a recurring basis

	At December 31, 2015
	Level 1		Level 2		Level 3		Fair Value
Cash equivalents	$	20,078	$	—	$	—	$	20,078
Derivative warrant liability	$	—	$	1,907	$	—	$	1,907

	At December 31, 2014
	Level 1		Level 2		Level 3		Fair Value
Cash equivalents	$	13,190	$	—	$	—	$	13,190
Derivative warrant liability	$	—	$	7,224	$	—	$	7,224