SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2017

SIGNIFICANT ACCOUNTING POLICIES

Schedule of cash and cash equivalents

	December 31,
(In thousands)	2017		2016
Cash	$	23	$	111
Money market funds		12,887		21,353
Total cash and cash equivalents	$	12,910	$	21,464

Summary of estimated useful lives

Classification	Estimated Useful Life
Computer hardware	3 - 5 years
Software	3 years
Office furniture and equipment	5 years
Research and lab equipment	5 years
Leasehold improvements	Remaining life of lease

Schedule of potentially dilutive securities not included in the computation of net loss per share because effect would be anti-dilutive

	2017	2016	2015
Stock options	3,369,245	3,193,785	3,253,310
Warrants	2,166,149	3,391,439	1,156,779
Unvested restricted stock units	500,000	—	—
	6,035,394	6,585,224	4,410,089