STOCK BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2019

STOCK BASED COMPENSATION

Schedule of assumptions used principally in determining the fair value of options granted

	March 31,	December 31,
	2019	2018
Risk-free interest rate	2.55%	2.45 - 2.88%
Expected dividend yield	0%	0%
Expected term (employee grants)	6 Years	5.62 Years
Expected volatility	105%	104%

Summary of option activity

				Weighted
		Weighted		Average
		Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
Options	Shares	Price		Term in Years	Value
Outstanding at December 31, 2018	54,849	$	100.83	7.32	$	—
Granted	90,000	$	1.53
Cancelled/Forfeited	(17,459)	$	40.12
Outstanding at March 31, 2019	127,390	$	39.00	8.75	$	2
Vested and Exercisable at March 31, 2019	28,773	$	146.51	5.66	$	—

Summary of restricted stock unit activity

		Weighted-Average
	Number of Grants	Grant Date Fair Value
Unvested balance at December 31, 2018	10,250	$	23.13
Granted	—	$	—
Vested/Released	(750)	$	22.00
Forfeited	—	$	—
Unvested balance at March 31, 2019	9,500	$	23.22