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STOCKHOLDERS' EQUITY (Tables)
3 Months Ended
Mar. 31, 2020
STOCKHOLDERS' EQUITY  
Schedule of Stock Options Activity

    

    

    

Weighted-

    

average

Weighted-

Contractual 

Number of 

 average 

Term

Aggregate 

shares

exercise price

(in years)

intrinsic value

Outstanding at December 31, 2019

2,605,730

$

6.73

8.92

$

11,706,110

Granted

Exercised

(19,750)

4.10

Forfeited

Expired

Outstanding at March 31, 2020

 

2,585,980

$

6.75

 

8.73

$

9,153,390

Schedule of Fair Value Assumptions

March 31, 2019

Volatility

 

204.59-291.61

%

Expected term (in years)

 

5.0-6.25

Risk-free rate

 

2.40-2.49

%

Expected dividend yield

 

--

Schedule of Nonvested Restricted Stock Units Activity

    

    

Weighted Average 

Grant Date Fair 

Number of Shares

Value

Outstanding at December 31, 2019

 

7,091,789

$

7.78

Granted

 

774,300

 

10.16

Vested

 

(527,237)

 

7.27

Forfeited

 

(10,000)

 

7.54

Outstanding at March 31, 2020

 

7,328,852

$

8.07

Schedule of stock-based compensation expense

The following table summarizes stock-based compensation expense information about restricted stock and stock options for the three months ended March 31, 2020 and 2019:

    

 

Three months ended

 

March 31, 

 

March 31, 

(in thousands)

 

2020

 

2019

Stock-based compensation expense associated with restricted stock

$

7,120

$

1,177

Stock-based compensation expense associated with option grants

 

3,948

 

705

Total

$

11,068

$

1,882

Schedule of Warrants Activity

    

Weighted-

    

 average exercise 

Aggregate 

Warrants

price

intrinsic value

Outstanding at December 31, 2019

 

147,058

$

4.08

$

1,032,347

Issued

 

 

 

Exercised

 

 

 

Expired

 

 

 

Outstanding at March 31, 2020

 

147,058

$

4.08

$

847,054