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Stockholders' Equity (Tables)
12 Months Ended
Feb. 29, 2020
Stockholders' Equity  
Schedule of convertible preferred stock

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Shares

    

Issued and

    

Carrying

    

Liquidation

Series

​

Par value

​

authorized

​

outstanding

​

amount

​

value

A‑1

​

$

0.0001

 

3,560,000

 

3,559,995

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$

10,000

​

$

10,000

A‑2

​

 

0.0001

 

2,579,999

 

2,579,994

​

 

10,000

​

 

10,000

B

​

 

0.0001

 

4,058,736

 

4,058,731

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16,944

​

 

16,944

C

​

 

0.0001

 

601,160

 

601,151

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7,000

​

 

7,000

D

​

 

0.0001

 

1,751,874

 

1,751,871

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30,000

​

 

30,000

E

​

 

0.0001

 

6,089,189

 

6,089,159

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140,720

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145,300

F

​

 

0.0001

 

873,038

 

873,038

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18,358

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20,000

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​

​

​

 

19,513,996

 

19,513,939

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$

233,022

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$

239,244