Shareholders' Equity [Text Block] | Note 6-Shareholders' Equity Common Stock The Company's authorized capital stock consists of 75,000,000 shares of common stock, with a par value of $0.001 per share, and 10,000,000 preferred shares with a par value of $0.001 per share. On June 23, 2021, the Company issued 2,311,000 shares of common stock at a price of $4.50 per common share, for gross proceeds of $10,399,500 in connection with the initial tranche of a non-brokered private placement ("Private Placement"). On July 21, 2021, the Company issued 8,734,611 shares of common stock at a price of $4.50 per common share, for gross proceeds of $39,305,750 in connection with the second tranche of the non-brokered Private Placement. On August 2, 2021, the Company entered into a series of substantially similar subscription agreements, pursuant to which the Company issued and sold to certain investors, in the final tranche of the Private Placement, an aggregate of 120,550 common shares at a price of $4.50 per share, for gross proceeds of $542,475. In aggregate, the Company issued a total of 11,166,161 common shares for total gross proceeds of $50,247,725. Robert Quartermain, a director and Co-Chair of the Company, purchased 50,000 common shares in the Private Placement. The Company paid a total of $754,598 in share issuance costs related to the Private Placement. During the nine months ended December 31, 2021, the Company also issued (i) 1,832,600 shares of common stock valued at $8,780,464 for investment in mineral properties (see Note 3 for additional discussion), (ii) 144,612 shares of common stock valued at $703,647 for settlements of debt (see Note 2 for additional discussion), and (iii) 1,450,000 shares of common stock valued at $7,177,500 to directors, employees and consultants to the Company and (iv) 37,500 shares of common stock for cash consideration of $22,500. During the nine months ended December 31, 2021, the Company recognized $7,177,500 of stock-based compensation ($1,361,250 being allocated to exploration costs and $5,816,250 being allocated to general and administrative expenses). Of the 1,450,000 shares of common stock issued as share-based compensation, 400,000 shares vested on June 4, 2021, and the remaining 1,050,000 shares will vest on June 4, 2022. The share-based compensation expense on the unvested bonus shares is being amortized on a straight-line basis until the vest date. During the nine months ended December 31, 2020, the Company issued (i)) 15,412,500 shares of common stock for $9,000,000; (ii) 1,987,500 shares of common stock for $631,000 upon the exercise of stock options and warrants; (iii) 1,051,467 shares upon cashless exercise of stock options and warrants; (iv) 750,000 shares of common stock valued at $1,320,000 for investment in mineral properties (see Note 4 for further discussion); and (v) 2,416,667 shares of common stock upon conversion of notes payable balances totaling $1,450,000 (See Note 2 for further discussion). On November 13, 2020, the Company declared a special cash dividend of $0.22 per common share, totaling $4,357,246, to holders of record of 19,805,664 shares of common stock. Such dividend was paid in January 2021. As of December 31, 2021, there were 70,828,204 shares of the Company's common stock outstanding. Common Stock Options, Restricted Stock Units and Warrants On January 25, 2015, the Company's board of directors adopted a plan entitled the "2015 Omnibus Incentive Plan." The 2015 Omnibus Incentive Plan is no longer in effect and no further securities will be issued under the 2015 Omnibus Incentive Plan, other than in respect of 75,000 common stock purchase options that remain outstanding. On March 11, 2021, the Company's board of directors adopted a plan entitled the "2021 Stock Incentive Plan." The 2021 Stock Incentive Plan has a total of 6,250,000 Common Shares available to award to the Company's directors, executive officers and consultants. As of December 31, 2021, a total of 2,103,750 shares of the Company's common stock remained available for future grants under the 2021 Stock Incentive Plan. Outstanding stock options under the 2021 Stock Incentive Plan have a term of five years. Outstanding stock options granted to third-party service providers generally vest over a period of up to two years. A summary of the Company's stock option activity and related information for the period ended December 31, 2021, is as follows: Shares Weighted Average Exercise Price Weighted Average Remaining Contractual Aggregate Value Outstanding as of March 31, 2021 825,000 $ 1.77 4.86 $ 285,000 Options granted 2,571,250 4.77 4.46 Options forfeited/cancelled (41,667 ) 2.63 Outstanding as of December 31, 2021 3,354,583 $ 4.06 4.37 $ 2,088,500 Options exercisable as of December 31, 2021 932,083 $ 4.41 4.35 During the nine months ended December 31, 2021, the Company estimated the fair value of each stock option to have a weighted average grant date fair value of $2.90 per share on the date of grant using a Black Scholes valuation model. The weighted-average assumptions used to calculate the grant date fair value were as follows: (i) risk-free interest rate ranging from 0.39% - 1.28%, (ii) estimated volatility between 82.61% and 95.82%, (iii) dividend yield of 0%, and (iv) expected life of 4.08 to 5 years. On October 18, 2021, the Company granted 300,000 stock options to an employee at an exercise price of $4.64 per option, with a grant date fair value of $3.31 per share and vesting over a period of 24 months. The share-based compensation expense for the stock options will be allocated to exploration expenses. On September 13, 2021, the Company granted 200,000 stock options to certain directors at an exercise price of $5.09 per option, with a grant date fair value of $3.71 per share and vesting over a period of 24 months. The share-based compensation expense for the stock options will be allocated to general and administrative expenses. On May 17, 2021, the Company granted 2,071,500 stock options to officers, directors and consultants at an exercise price of $4.76 per option, with a grant date fair value of $3.39 per share and vesting over a period of 24 months. The share-based compensation expense for the stock options will be allocated to general and administrative and exploration expenses. The Company recognized stock-based compensation related to issuance of stock options totaling $6,025,440 ($1,574,372 being allocated to exploration costs and $4,451,068 being allocated to administrative expenses) during the nine months ended December 31, 2021. As of December 31, 2021, the unrecognized compensation cost related to unvested options was $3,608,802. No stock-based compensation was recognized by the Company during the nine months ended December 31, 2020. On June 4, 2021, the Company issued 1,050,000 restricted stock units ("RSU's") with a grant date fair value of $5.01 per share to certain directors, officers, employees and consultants and vesting on June 4, 2022. On October 18, 2021, the Company issued 125,000 RSUs with a grant date fair value of $4.64 per share and vesting on June 4, 2022. The share-based compensation expense for the RSUs will be allocated to exploration expenses. For the three months ended December 31, 2021, $187,424 was allocated to exploration expenses pursuant to these grants. There were no warrants outstanding as of December 31, 2021, and March 31, 2021. |