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Fair Value Measurements (Tables)
6 Months Ended 12 Months Ended
Aug. 31, 2020
Feb. 29, 2020
Fair Value Measurements    
Schedule of fair value of financial assets

    

Level 1  

    

Level 2  

    

Level 3  

    

Fair Value  

Assets

Cash equivalents:

 

  

 

  

 

  

 

  

Money market funds

$

21,332

$

$

 

$

21,332

Certificates of deposit

$

5,000

$

$

 

$

5,000

    

Level 1

    

Level 2

    

Level 3

    

Fair Value

Assets

  

  

  

  

Cash equivalents:

 

  

 

  

 

  

 

  

Money market funds

$

212,221

$

$

$

212,221

February 28, 2019

    

Level 1

    

Level 2

    

Level 3

    

Fair Value

Assets

Cash equivalents:

Money market funds

$

28,661

$

$

$

28,661

February 29, 2020

    

Level 1

    

Level 2

    

Level 3

    

Fair Value

Assets

    

  

    

  

    

  

    

  

Cash equivalents:

  

  

  

  

Money market funds

$

21,332

$

$

$

21,332