INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2018

INCOME TAXES

Schedule of significant components of net deferred tax assets

	December 31,
(In thousands)	2018		2017
Net operating loss carryforward	$	34,846	$	31,533
Research and development credit carryforward		1,390		1,173
Stock-based compensation		2,300		2,828
Depreciation and amortization		11		71
Accrued expenses		136		357
Charitable contributions		—		27
Subtotal		38,683		35,989
Valuation allowance		(38,683)		(35,989)
Net deferred taxes	$	—	$	—

Schedule of income tax benefits computed using the federal statutory income tax rate

	December 31,
	2018		2017
Statutory rate	(21.0)	%	(34.0)	%
State taxes, net of benefit	(2.9)	%	(4.7)	%
Permanent differences:
Derivative losses	10.9	%	2.9	%
Other	0.4	%	1.1	%
Research and development tax credit	(0.8)	%	(0.2)	%
Other	1.9	%	1.4	%
Adoption of ASU 2016-09	—	%	7.4	%
Increase / (decrease) in valuation reserve	11.5	%	(32.0)	%
Change in federal tax rate	—	%	58.1	%
Effective tax rate	0.0	%	0.0	%