XML 32 R22.htm IDEA: XBRL DOCUMENT v3.20.2
STOCK-BASED COMPENSATION (Tables)
 9 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of fair values of stock options granted, estimated using Black-Scholes option valuation model assumptions The fair values of stock options granted for the periods were estimated using the following assumptions:  
 Stock Option Grants Awarded During the Nine Months Ended September 30, 2020Stock Option Grants Awarded During the Nine Months Ended September 30, 2019
Stock Price
$1.74 to $2.85
$1.52 to $3.26
Dividend Yield0.00%0.00%
Expected Volatility
70% to 83%
70%
Risk-free interest rate
0.36% to 1.52%
1.47% to 2.62%
Expected Life7 years7 years
Summary of stock option activity The following is a summary of our stock option activity during the nine months ended September 30, 2020: 
 Number of
Options		Weighted
Average
Exercise
Price		Weighted
Average
Grant Date
Fair Value		Weighted
Average
Remaining
Life In
Years
Outstanding, January 1, 20201,340,252 $4.57 $2.88 6.95
Granted95,500 2.32 1.68 8.75
Exercised(1,875)1.80 1.23 —
Canceled / Forfeited (281,325)4.17 2.71 —
Outstanding, September 30, 20201,152,552 $4.48 $2.83 5.79
 
Number of
Options		Weighted
Average
Exercise
Price		Weighted
Average
Grant Date
Fair Value		Weighted
Average
Remaining
Life In
Years
Exercisable, January 1, 2020989,092 $4.85 $3.03 6.37
Vested99,346 3.75 2.39 5.17
Exercised(1,875)1.80 1.23 —
Canceled / Forfeited (132,368)4.69 3.00 —
Exercisable, September 30, 2020954,195 $4.77 $2.97 5.17
Schedule of information related to stock options outstanding and exercisable
The following table presents information related to stock options outstanding and exercisable at September 30, 2020: 
Options OutstandingOptions Exercisable
Exercise
Price		Outstanding
Number of
Options		Weighted
Average
Remaining
Life In
Years		Exercisable
Number
of Options
$1.52 – $3.15
333,247 5.52191,388 
$3.25 – $4.92
439,117 6.17394,464 
$5.01 – $6.00
229,570 4.28220,839 
$6.18 – $7.20
60,318 3.2660,318 
$7.54 – $7.80
67,800 3.1864,686 
$8.06 – $12.98
22,500 4.3022,500 
 1,152,552 5.17954,195 
Schedule of restricted stock unit activity A summary of restricted stock unit activity for the nine months ended September 30, 2020 is as follows: 
 Number of
Restricted Share
Units		Weighted-
Average
Grant-Date Fair
Value Per Share
Outstanding at January 1, 20202,556,004 $3.38 
Granted2,486,320 1.98 
Vested(1,064,919)2.89 
Forfeited(425,262)2.57 
Outstanding at September 30, 20203,552,143 $2.64 
Schedule of stock-based compensation Total stock-based compensation recorded in the condensed consolidated statements of comprehensive loss is allocated as follows: 
 Three Months Ended September 30, 2020Three Months Ended September 30, 2019Nine Months Ended September 30, 2020Nine Months Ended September 30, 2019
Research and development$645,000 $703,000 $2,163,000 $2,026,000 
Sales, marketing and administration828,000 686,000 2,300,000 2,174,000 
   Total stock-based compensation$1,473,000 $1,389,000 $4,463,000 $4,200,000