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STOCK-BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of stock options and stock awards
The status of our stock options and stock awards are summarized as follows:
 
Number of options
 
Weighted average exercise price
Outstanding at December 31, 2018
3,480,701

 
$
3.10

Granted
1,277,500

 
7.73

Exercised
(270,549
)
 
2.87

Canceled and forfeited
(10,500
)
 
2.10

Outstanding at March 31, 2019
4,477,152

 
$
4.44

Schedule of option fair value assumptions
 
2019 Grants
Option value
$
7.15

-
$
7.91

Risk-free rate
2.6%
-
2.6
%
Expected dividend yield
Expected volatility
69.1%
-
69.1
%
Expected term (in years)
6