Note 5 - Common Shares

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

5.

     COMMON SHARES

At

December 31, 2020

and

2019

, respectively, we had

25,639,702

 and

25,053,480

 Common Shares issued and

25,228,951

 and

24,592,578

 outstanding, with an additional

6,715

shares reserved for issuance upon conversion of the

nil

coupon non-redeemable convertible unsecured loan notes (see Note

7

). As of

December 31, 2020

, we had

5,600,676

shares reserved for issuance upon the exercise or vesting of equity awards, of which

484,500

are stock options that are currently exercisable (see Note

8

).