Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Stock-based Compensation (Tables)

v3.21.2
Note 4 - Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   

Nine Months Ended September 30, 2021

 
   

Number of

Options

   

Weighted

Average

Exercise

Price

   

Weighted

Average

Remaining

Contractual

Life

(in years)

   

Aggregate

Intrinsic

Value

 

Outstanding, January 1, 2021

    549,970     $ 8.81       8.0     $ 209,280  

Granted

    234,500       2.53                  

Exercised

    (2,000

)

    1.06                  

Cancelled/Forfeited

    (67,600

)

    4.01                  

Expired

    (2,090

)

    61.75                  

Outstanding, September 30, 2021

    712,780     $ 7.07       7.6     $ 128,765  

Exercisable, September 30, 2021

    222,882     $ 13.27       5.6     $ 47,381  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
   

Nine Months Ended

September 30, 2021

 
   

Number of

Shares

   

Weighted

Average

Grant-Date

Fair Value

 

Unvested, January 1, 2021

    60,000     $ 2.90  

Granted

    15,000       2.17  

Vested

    (36,667

)

    2.40  

Unvested, September 30, 2021

    38,333     $ 3.10