Quarterly report pursuant to Section 13 or 15(d)

Note 13 - Stockholders' Equity (Tables)

v3.10.0.1
Note 13 - Stockholders' Equity (Tables)
3 Months Ended
Aug. 31, 2018
Stockholders' Equity Note [Abstract]  
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]
The following table summarizes the significant terms of warrants outstanding at August 31, 2018. These warrants were granted as part of financing agreements. This table does not include the special warrants; see Special Warrant section below:

 

 

 

 

 

 

 

 

Weighted

 

 

Weighted

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

 

 

average

 

 

average

 

 

 

 

 

 

average

 

Range of

 

 

Number of

 

 

remaining

 

 

exercise

 

 

 

 

 

 

exercise

 

exercise

 

 

warrants

 

 

contractual

 

 

price of

 

 

Number of

 

 

price of

 

Prices

 

 

Outstanding

 

 

life (years)

 

 

outstanding Warrants

 

 

warrants Exercisable

 

 

exercisable Warrants

 

$

0.49

 

 

 

2,317,842

 

 

 

2.81

 

 

$

0.49

 

 

 

2,317,842

 

 

$

0.49

 

 

0.50

 

 

 

2,736,500

 

 

 

3.48

 

 

 

0.50

 

 

 

2,736,500

 

 

 

0.50

 

 

0.60

 

 

 

17,500,000

 

 

 

3.25

 

 

 

0.60

 

 

 

17,500,000

 

 

 

0.60

 

 

0.75

 

 

 

1,107,738

 

 

 

2.85

 

 

 

0.75

 

 

 

1,107,738

 

 

 

0.75

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23,662,080

 

 

 

3.22

 

 

$

0.57

 

 

 

23,662,080

 

 

$

0.57

 

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
Transactions involving warrants are summarized as follows. This table does not include the special warrants; see Special Warrant section below.

   

Number of

Shares

   

Weighted

Average

Exercise

Price

 

Warrants outstanding at May 31, 2018

    4,700,988     $ 0.75  

Granted

    19,311,092     $ 0.58  

Exercised

    (350,000

)

  $ 0.75  

Cancelled / Expired

    -     $ -  

Warrants outstanding at August 31, 2018

    23,662,080     $ 0.57