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Note 7 - Capital Stock and Reserves (Tables) | 6 Months Ended
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Sep. 30, 2024
Statement Line Items [Line Items] |
Disclosure of number and weighted average exercise prices of share options [text block] |
Expiry Date |  | Exercise Price |  |  | Balance March 31, 2024 |  |  | Granted |  |  | Exercised |  |  | Forfeited / Expired |  |  | Balance September 30, 2024 |  |  | Exercisable |
March 8, 2025 |  | $ | 15.50 |  |  |  | 4,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 4,000 |  |  |  | 4,000 |
September 2, 2025 |  | $ | 12.75 |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
September 6, 2025 |  | $ | 13.75 |  |  |  | 8,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 8,000 |  |  |  | 8,000 |
November 20, 2025 |  | $ | 4.00 |  |  |  | 6,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 6,000 |  |  |  | 6,000 |
December 2, 2025 |  | $ | 9.00 |  |  |  | 62,000 |  |  |  | - |  |  |  | - |  |  |  | (20,000 | ) |  |  | 42,000 |  |  |  | 42,000 |
December 13, 2025 |  | $ | 9.50 |  |  |  | 21,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 21,000 |  |  |  | 21,000 |
March 26, 2026 |  | $ | 3.30 |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
August 25, 2026 |  | $ | 5.65 |  |  |  | 17,500 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 17,500 |  |  |  | 17,500 |
September 6, 2026 |  | $ | 6.60 |  |  |  | 40,000 |  |  |  | - |  |  |  | - |  |  |  | (7,500 | ) |  |  | 32,500 |  |  |  | 32,500 |
November 1, 2026 |  | $ | 7.50 |  |  |  | 10,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 10,000 |  |  |  | 10,000 |
December 4, 2026 |  | $ | 5.47 |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
September 6, 2028 |  | $ | 6.60 |  |  |  | 85,000 |  |  |  | - |  |  |  | - |  |  |  | (25,000 | ) |  |  | 60,000 |  |  |  | 60,000 |
February 15, 2029 |  | $ | 3.98 |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
July 23, 2029 |  | $ | 3.91 |  |  |  | - |  |  |  | 36,000 |  |  |  | - |  |  |  | - |  |  |  | 36,000 |  |  |  | 36,000 |
Total |  |  |  |  |  |  | 333,500 |  |  |  | 36,000 |  |  |  | - |  |  |  | (52,500 | ) |  |  | 317,000 |  |  |  | 317,000 |
Weighted average exercise price |  |  |  |  |  | $ | 7.38 |  |  | $ | 3.81 |  |  | $ | - |  |  | $ | 7.51 |  |  | $ | 6.96 |  |  | $ | 6.96 |
Weighted average remaining life (years) |  |  |  |  |  |  | 2.61 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.51 |  |  |  |  |
Expiry Date |  | Exercise Price |  |  | Balance March 31, 2023 |  |  | Granted |  |  | Exercised |  |  | Forfeited / Expired |  |  | Balance March 31, 2024 |  |  | Exercisable |
March 1, 2024 |  | $ | 16.50 |  |  |  | 15,000 |  |  |  | - |  |  |  | - |  |  |  | (15,000 | ) |  |  | - |  |  |  | - |
November 14, 2024 |  | $ | 3.65 |  |  |  | - |  |  |  | 36,000 |  |  |  | (36,000 | ) |  |  | - |  |  |  | - |  |  |  | - |
March 8, 2025 |  | $ | 15.50 |  |  |  | 4,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 4,000 |  |  |  | 4,000 |
September 2, 2025 |  | $ | 12.75 |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
September 6, 2025 |  | $ | 13.75 |  |  |  | 8,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 8,000 |  |  |  | 8,000 |
November 20, 2025 |  | $ | 4.00 |  |  |  | 6,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 6,000 |  |  |  | 6,000 |
December 2, 2025 |  | $ | 9.00 |  |  |  | 62,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 62,000 |  |  |  | 62,000 |
December 13, 2025 |  | $ | 9.50 |  |  |  | 31,000 |  |  |  | - |  |  |  | - |  |  |  | (10,000 | ) |  |  | 21,000 |  |  |  | 21,000 |
January 15, 2026 |  | $ | 7.25 |  |  |  | 35,300 |  |  |  | - |  |  |  | - |  |  |  | (35,300 | ) |  |  | - |  |  |  | - |
March 26, 2026 |  | $ | 3.30 |  |  |  | - |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
August 25, 2026 |  | $ | 5.65 |  |  |  | - |  |  |  | 17,500 |  |  |  | - |  |  |  | - |  |  |  | 17,500 |  |  |  | 17,500 |
September 6, 2026 |  | $ | 6.60 |  |  |  | - |  |  |  | 40,000 |  |  |  | - |  |  |  | - |  |  |  | 40,000 |  |  |  | 40,000 |
November 1, 2026 |  | $ | 7.50 |  |  |  | 10,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 10,000 |  |  |  | 10,000 |
December 4, 2026 |  | $ | 5.47 |  |  |  | - |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
February 16, 2027 |  | $ | 17.50 |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | (20,000 | ) |  |  | - |  |  |  | - |
September 6, 2028 |  | $ | 6.60 |  |  |  | - |  |  |  | 85,000 |  |  |  | - |  |  |  | - |  |  |  | 85,000 |  |  |  | 85,000 |
February 15, 2029 |  | $ | 3.98 |  |  |  | - |  |  |  | 20,000 |  |  |  | - |  |  |  | - |  |  |  | 20,000 |  |  |  | 20,000 |
|  | $ | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | - |
Total |  |  |  |  |  |  | 211,300 |  |  |  | 238,500 |  |  |  | (36,000 | ) |  |  | (80,300 | ) |  |  | 333,500 |  |  |  | 333,500 |
Weighted average exercise price |  |  |  |  |  | $ | 10.81 |  |  | $ | 5.87 |  |  | $ | 4.70 |  |  | $ | 9.95 |  |  | $ | 7.38 |  |  | $ | 7.38 |
Weighted average remaining life (years) |  |  |  |  |  |  | 2.57 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.61 |  |  |  |  |
Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block] |
|  | September 30, 2024 |  |  | March 31, 2024 |
Fair value per option |  | $ | 3.12 |  |  | $ | 5.42 |
Exercise price |  | $ | 3.91 |  |  | $ | 5.49 |
Expected life (years) |  |  | 5.00 |  |  |  | 3.50 |
Interest rate |  |  | 3.33 | % |  |  | 4.17 | %
Annualized volatility (based on historical volatility) |  |  | 109 | % |  |  | 108 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | %
Disclosure of detailed information about warrant transactions [text block] |
Expiry Date |  | Exercise Price |  |  | Balance March 31, 2024 |  |  | Granted |  |  | Exercised |  |  | Forfeited / Expired |  |  | Balance September 30, 2024 |
August 24, 2028 |  | $ | USD 6.25 |  |  |  | 800,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 800,000 |
March 13, 2026 |  | $ | 4.00 |  |  |  | 341,592 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 341,592 |
April 29, 2026 |  | $ | 4.00 |  |  |  | - |  |  |  | 247,471 |  |  |  | - |  |  |  | - |  |  |  | 247,471 |
Total |  |  |  |  |  |  | 1,141,592 |  |  |  | 247,471 |  |  |  | - |  |  |  | - |  |  |  | 1,389,063 |
Weighted average exercise price |  |  |  |  |  | $ | 5.58 |  |  | $ | 4.00 |  |  | $ | - |  |  | $ | - |  |  | $ | 5.30 |
Weighted average remaining life (years) |  |  |  |  |  |  | 3.67 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.46 |
Expiry Date |  | Exercise Price |  |  | Balance March 31, 2023 |  |  | Granted |  |  | Exercised |  |  | Forfeited / Expired |  |  | Balance March 31, 2024 |
December 2, 2023 |  | $ | 6.50 |  |  |  | 24,000 |  |  |  | - |  |  |  | - |  |  |  | (24,000 | ) |  |  | - |
August 24, 2028 |  | $ | USD 6.25 |  |  |  | - |  |  |  | 800,000 |  |  |  | - |  |  |  | - |  |  |  | 800,000 |
March 13, 2026 |  | $ | 4.00 |  |  |  | - |  |  |  | 341,592 |  |  |  | - |  |  |  | - |  |  |  | 341,592 |
Total |  |  |  |  |  |  | 24,000 |  |  |  | 1,141,592 |  |  |  | - |  |  |  | (24,000 | ) |  |  | 1,141,592 |
Weighted average exercise price |  |  |  |  |  | $ | 6.50 |  |  | $ | 5.58 |  |  | $ | - |  |  | $ | 6.50 |  |  | $ | 5.58 |
Weighted average remaining life (years) |  |  |  |  |  |  | 0.67 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.67 |
Expiry Date |  | Exercise Price |  |  | Balance March 31, 2024 |  |  | Granted |  |  | Exercised |  |  | Cancelled / Expired |  |  | Balance September 30, 2024 |
August 19, 2024 |  | $ | 10.00 |  |  |  | 5,765 |  |  |  | - |  |  |  | - |  |  |  | (5,765 | ) |  |  | - |
August 21, 2028 |  | $ | USD 6.25 |  |  |  | 40,000 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 40,000 |
March 13, 2026 |  | $ | 3.40 |  |  |  | 3,274 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 3,274 |
April 29, 2026 |  | $ | 3.40 |  |  |  | - |  |  |  | 51 |  |  |  | - |  |  |  | - |  |  |  | 51 |
Total |  |  |  |  |  |  | 49,039 |  |  |  | 51 |  |  |  | - |  |  |  | - |  |  |  | 43,325 |
Weighted average exercise price |  |  |  |  |  | $ | 6.50 |  |  | $ | 3.40 |  |  | $ | - |  |  | $ | - |  |  | $ | 6.03 |
Weighted average remaining life (years) |  |  |  |  |  |  | 2.94 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.88 |
Expiry Date |  | Exercise Price |  |  | Balance March 31, 2023 |  |  | Granted |  |  | Exercised |  |  | Cancelled / Expired |  |  | Balance March 31, 2024 |
August 19, 2024 |  | $ | 10.00 |  |  |  | 5,765 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 5,765 |
August 21, 2028 |  | $ | USD 6.25 |  |  |  | - |  |  |  | 40,000 |  |  |  | - |  |  |  | - |  |  |  | 40,000 |
March 13, 2026 |  | $ | 3.40 |  |  |  | - |  |  |  | 3,274 |  |  |  | - |  |  |  | - |  |  |  | 3,274 |
Total |  |  |  |  |  |  | 5,765 |  |  |  | 43,274 |  |  |  | - |  |  |  | - |  |  |  | 49,039 |
|  |  |  |  |  |  |  |  |  | $ | USD 6.25 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average exercise price |  |  |  |  |  | $ | 10.00 |  |  | $ | CAD 3.40 |  |  | $ | - |  |  | $ | - |  |  | $ | 6.50 |
Weighted average remaining life (years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.94 |
Disclosure of derivative financial instruments [text block] |
|  | As at September 30, 2024 |  |  | As at March 31, 2024 |  |  | As at August 24, 2023 |
Number of warrants outstanding |  |  | 800,000 |  |  |  | 800,000 |  |  |  | 800,000 |
Warrant price at valuation date |  | $ | 0.40 USD |  |  | $ | 0.61 USD |  |  | $ | 0.76 USD |
Exchange rate |  |  | 1.3514 |  |  |  | 1.35397 |  |  |  | 1.35460 |
Fair value of warrants outstanding (derivative liability) |  | $ | 428,663 |  |  | $ | 656,946 |  |  | $ | 823,597 |
Unit warrants expiring on both March 13, 2026 and April 29, 2026 [member] |
Statement Line Items [Line Items] |
Disclosure of indirect measurement of fair value of warrants granted during period [text block] |
|  | September 30, 2024 |  |  | March 31, 2024 |
Fair value per warrant |  | $ | 1.94 |  |  | $ | 3.77 |
Exercise price |  | $ | 4.00 |  |  | $ | 4.00 |
Expected life (years) |  |  | 2.00 |  |  |  | 2.00 |
Interest rate |  |  | 4.30 | % |  |  | 3.50 | %
Annualized volatility (based on historical volatility) |  |  | 100 | % |  |  | 111 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | %
|  | September 30, 2024 |  |  | March 31, 2024 |
Fair value per agent warrants |  | $ | 1.96 |  |  | $ | 7.95 |
Exercise price |  | $ | 4.00 |  |  | $ | 8.09 |
Expected life (years) |  |  | 2.00 |  |  |  | 4.78 |
Interest rate |  |  | 4.30 | % |  |  | 4.09 | %
Annualized volatility (based on historical volatility) |  |  | 101 | % |  |  | 113 | %
Dividend yield |  |  | 0.00 | % |  |  | 0.00 | %

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