Stockholders' Equity Note Disclosure [Text Block] | 9. Stockholders’ Equity Authorized 2,000,000 18,000,000 0.001 Equity Transactions On February 10, 2017, the Company entered into an At The Market Offering Agreement (the “Agreement”) with Maxim Group LLC (“Maxim”), as amended on March 30, 2017, pursuant to which the Company could sell from time to time, up to an aggregate of $ 5,500,000 Under the terms of the Agreement, Maxim was entitled to a commission at a fixed rate of 3.5 During the three months ended April 30, 2017 pursuant to and under the terms of the Agreement, as amended, the Company issued an aggregate of 2,189,052 5,499,723 5,307,233 Stock Options 2014 Stock Option Plan On June 6, 2014, the Company’s board of directors approved a 2014 Long-Term Incentive Plan (the “2014 Plan”), which provides for the grant of stock options, restricted shares, restricted share units and performance stock and units to directors, officers, employees and consultants of the Company. Stockholder approval of the plan was obtained on August 21, 2014. The maximum number of shares of common stock reserved for issue under the plan is 2,750,000 The 2014 Plan is administered by the board of directors, except that it may, in its discretion, delegate such responsibility to a committee of such board. The exercise price will be determined by the board of directors at the time of grant. Stock options may be granted under the 2014 Plan for an exercise period of up to ten years from the date of grant of the option or such lesser periods as may be determined by the board, subject to earlier termination in accordance with the terms of the 2014 Plan. At April 30, 2017, 509,601 509,601 Stock Based Compensation Number Weighted Weighted Average of Options Exercise Price Fair Value Outstanding at February 1, 2016 2,191,274 $ 5.12 $ 7.86 Expired (93,875) $ 5.19 Forfeited (70,000) $ 5.12 Granted 260,000 $ 2.21 $ 1.41 Outstanding at January 31, 2017 2,287,399 $ 4.78 Granted 1,200,000 $ 2.14 $ 0.89 Outstanding at April 30, 2017 3,487,399 $ 3.87 Exercisable at April 30, 2017 3,072,043 $ 3.89 Number Exercise Expiry Number 15,000 10.00 October 9, 2017 15,000 1,250 10.00 February 1, 2018 1,250 3,750 10.00 May 1, 2018 3,750 2,000 10.00 April 1, 2019 2,000 25,000 10.00 July 30, 2022 25,000 1,536,750 5.12 June 6, 2024 1,421,358 25,000 6.00 June 10, 2024 25,000 37,500 5.12 February 3, 2025 25,000 37,500 4.48 February 25, 2025 25,000 6,250 4.80 July 6, 2025 6,250 337,399 4.40 August 18, 2026 212,435 10,000 2.50 February 25, 2026 10,000 100,000 2.50 November 1, 2026 100,000 150,000 2.00 November 1, 2026 - 1,200,000 2.14 March 13, 2021 1,200,000 3,487,399 3,072,043 The aggregate intrinsic value of stock options outstanding is calculated as the difference between the exercise price of the underlying awards and the fair value of the Company’s common stock. At April 30, 2017, the aggregate intrinsic value of stock options outstanding was $Nil and exercisable was $Nil (January 31, 2017: $Nil and $Nil, respectively). During the three months ended April 30, 2017, the Company recognized a total fair value of $ 1,641,781 1,271,361 992,625 2017 2016 Expected term of stock option (years) (1) 2.00 5.00 Expected volatility (2) 76.10 % 67.70 % Stock price at date of issuance $ 2.14 $ 2.50 Risk-free interest rate 1.40 % 1.16 % Dividend yields 0.00 % 0.00 % (1) (2) Share Purchase Warrants Number Exercise Expiry 12,451 $ 10.00 August 10, 2017 3,750 $ 10.00 August 10, 2018 60,001 $ 6.00 April 4, 2019 555,968 $ 6.00 June 10, 2019 155,052 $ 3.00 June 10, 2019 168,883 $ 6.00 July 8, 2019 29,343 $ 3.00 July 8, 2019 24,625 $ 8.00 October 23, 2019 137,180 $ 4.80 December 23, 2020 365,688 $ 4.80 June 15, 2022 36,569 (1) $ 4.80 June 15, 2022 15,000 $ 4.80 July 6, 2022 62,500 $ 5.11 September 1, 2022 1,627,010 (1) These warrants may vest and become exercisable only under certain anti-dilution performance conditions contained in the warrant agreement. During the year ended January 31, 2016, the Company issued an aggregate of 479,757 4.84 4.67 2,239,000 7 158.04 0.00 2.09 41,348 (104,284) Certain of the warrants granted during the year ended January 31, 2016 become exercisable only under certain anti-dilution performance conditions contained in the warrant agreement. The fair value of these warrants at issuance was calculated to be $ 168,500 7 153.00 0.00 2.11 Number of Weighted Average Warrants Exercise Price Outstanding at February 1, 2016 1,645,198 $ 5.27 Expired (18,188) $ 4.00 Outstanding at January 31, 2017 and April 30, 2017 1,627,010 $ 5.29 |