Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Stock-based Compensation (Tables)

v3.21.1
Note 5 - Stock-based Compensation (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   
Three Months Ended
 
   
March 31, 2021
 
Risk-free interest rate
 
 0.46%
-
0.92%
 
Dividend yield
 
 
0%
 
 
Expected term (in years)
 
 
5
 
 
Expected volatility
 
92.6%
-
93.8%
 
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   
Options outstanding
     
 
 
 
   
 
 
 
 
Weighted average
 
Weighted average
 
Aggregate
 
   
 
 
 
 
exercise price
 
remaining
 
intrinsic
 
Incentive Options
 
Shares
   
per share
 
contractual term
 
value
 
Outstanding at December 31, 2020
   
1,395,000
    $
0.31
 
 
   
 
 
Options granted
   
145,000
     
2.62
 
 
   
 
 
Options exercised
   
(25,000
)    
0.14
 
 
   
 
 
Options expired
   
-
     
-
 
 
   
 
 
Options forfeited
   
-
     
-
 
 
   
 
 
Outstanding at March 31, 2021
   
1,515,000
    $
0.53
 
4 years, 5 months
  $
3,585,623
 
Exercisable at March 31, 2021
   
1,135,000
    $
0.25
 
3 years, 1 month
  $
3,013,473
 
                           
                           
Outstanding at December 31, 2019
   
1,349,000
    $
0.23
 
 
   
 
 
Options granted
   
-
     
-
 
 
   
 
 
Options exercised
   
-
     
-
 
 
   
 
 
Options expired
   
(129,000
)    
0.17
 
 
   
 
 
Options forfeited
   
-
     
-
 
 
   
 
 
Outstanding at March 31, 2020
   
1,220,000
    $
0.24
 
3 years, 11 months
  $
-
 
Exercisable at March 31, 2020
   
1,201,500
    $
0.24
 
3 years, 10 months
  $
-
 
Schedule of Nonvested Share Activity [Table Text Block]
   
Nonvested
 
   
 
 
 
 
Weighted average
 
   
 
 
 
 
grant date
 
   
Shares
   
fair value
 
Nonvested at December 31, 2020
   
235,000
    $
0.36
 
Granted
   
145,000
     
1.87
 
Vested
   
-
     
-
 
Forfeited
   
-
     
-
 
Nonvested at March 31, 2021
   
380,000
    $
0.94
 
                 
                 
Nonvested at December 31, 2019
   
23,500
    $
0.17
 
Granted
   
-
     
-
 
Vested
   
(5,000
)    
0.21
 
Forfeited
   
-
     
-
 
Nonvested at March 31, 2020
   
18,500
    $
0.15