SHAREHOLDERS' EQUITY (Tables)

3 Months Ended

Mar. 31, 2018

Stockholders' Equity Note [Abstract]

Schedule of stock options by exercise price range

The following tables summarize information about stock options outstanding and exercisable:

	Options Outstanding and Exercisable at March 31, 2018
Range of Exercise Prices	Number Outstanding		Weighted Remaining Contractual Life	Weighted Average Exercise Price		Aggregate Intrinsic Value(1)
$0.40 to $0.60		5,276,223	2.6 years	$	0.46	$	—
$0.61 to $1.00		9,800,000	2.5 years	$	0.67	$	—
$1.01 to $1.50		14,500,000	2.6 years	$	1.25	$	—
$1.51 to $2.25		3,000,000	3.1 years	$	1.63	$	—
$0.40 to $2.25		32,576,223	2.6 years	$	0.98	$	—