XML 29 R17.htm IDEA: XBRL DOCUMENT v3.22.2
Note 1 - Description of Business and Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
  

Three Months Ended June 30,

  

Six Months Ended June 30,

 
  

2022

  

2021

  

2022

  

2021

 

Stock options

  1,066,162   406,960   1,038,040   299,743 

Restricted stock units

  10,827      16,913   84,527