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Note 9 - Capital Stock and Reserve - Summary of Warrant Transactions (Details) | 9 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 $ / shares shares | Dec. 31, 2023 $ / shares $ / shares shares | Mar. 31, 2023 $ / shares shares | Dec. 31, 2023 $ / shares
Unit warrants expiring December 2, 2023 [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares | $ 6.5 | $ 6.5 | $ 6.5 |
Balances, number of warrants (in shares) | 24,000 | 24,000 | 47,800 |
Issued, number of warrants (in shares) | 0 | 0 | 0 |
Exercised, number of warrants (in shares) | 0 | 0 | (23,800) |
Cancelled, number of warrants (in shares) | (24,000) | (24,000) | 0 |
Balances, number of warrants (in shares) | 0 | 0 | 24,000 |
Unit warrants one [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares |  |  | $ 3.75 |
Balances, number of warrants (in shares) | 0 | 0 | 53,778 |
Issued, number of warrants (in shares) |  |  | 0 |
Exercised, number of warrants (in shares) |  |  | (53,778) |
Cancelled, number of warrants (in shares) |  |  | 0 |
Balances, number of warrants (in shares) |  |  | 0 |
Agent warrants expiring July 19, 2024 [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares | $ 10 | $ 10 | $ 10 |
Balances, number of warrants (in shares) | 5,765 | 5,765 | 0 |
Issued, number of warrants (in shares) | 0 | 0 | 5,765 |
Exercised, number of warrants (in shares) | 0 | 0 | 0 |
Cancelled, number of warrants (in shares) | 0 | 0 | 0 |
Balances, number of warrants (in shares) | 5,765 | 5,765 | 5,765 |
Unit warrants expiring August 24, 2028 [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares |  |  |  | $ 6.25
Balances, number of warrants (in shares) | 0 | 0 |  |
Issued, number of warrants (in shares) | 800,000 | 800,000 |  |
Exercised, number of warrants (in shares) | 0 | 0 |  |
Cancelled, number of warrants (in shares) | 0 | 0 |  |
Balances, number of warrants (in shares) | 800,000 | 800,000 | 0 |
Unit warrants two [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares |  |  | $ 5 |
Balances, number of warrants (in shares) | 0 | 0 | 121,600 |
Issued, number of warrants (in shares) |  |  | 0 |
Exercised, number of warrants (in shares) |  |  | (121,600) |
Cancelled, number of warrants (in shares) |  |  | 0 |
Balances, number of warrants (in shares) |  |  | 0 |
Agent warrants expiring August 21, 2028 [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares |  |  |  | $ 6.25
Balances, number of warrants (in shares) | 0 | 0 |  |
Issued, number of warrants (in shares) | 40,000 | 40,000 |  |
Exercised, number of warrants (in shares) | 0 | 0 |  |
Cancelled, number of warrants (in shares) | 0 | 0 |  |
Balances, number of warrants (in shares) | 40,000 | 40,000 | 0 |
Agent warrants [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
Balances, number of warrants (in shares) | 5,765 | 5,765 | 0 |
Issued, number of warrants (in shares) | 40,000 | 40,000 | 5,765 |
Exercised, number of warrants (in shares) | 0 | 0 | 0 |
Cancelled, number of warrants (in shares) | 0 | 0 | 0 |
Balances, number of warrants (in shares) | 45,765 | 45,765 | 5,765 |
Balances, warrants, weighted average exercise price (in CAD per share) | $ / shares | $ 10 |  | $ 0 |
Issued, warrants, weighted average exercise price (in dollars per share) | (per share) |  | $ 6.25 | 10 |
Exercised, warrants, weighted average exercise price (in CAD per share) | $ / shares | 0 |  | 0 |
Cancelled, warrants, weighted average exercise price (in CAD per share) | $ / shares | 0 | $ 0 | 0 |
Balances, warrants, weighted average exercise price (in CAD per share) | $ / shares | $ 0 |  | $ 10 |
warrant, weighted average remaining life (years) (Year) | 4 years 1 month 17 days | 4 years 1 month 17 days | 1 year 3 months 18 days |
Unit warrants expiring October 29, 2022 [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares |  |  | $ 12.5 |
Balances, number of warrants (in shares) | 0 | 0 | 36,166 |
Issued, number of warrants (in shares) |  |  | 0 |
Exercised, number of warrants (in shares) |  |  | (3,572) |
Cancelled, number of warrants (in shares) |  |  | (32,594) |
Balances, number of warrants (in shares) |  |  | 0 |
Unit warrants [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
Balances, number of warrants (in shares) | 24,000 | 24,000 | 281,344 |
Issued, number of warrants (in shares) | 800,000 | 800,000 | 0 |
Exercised, number of warrants (in shares) | 0 | 0 | (212,750) |
Cancelled, number of warrants (in shares) | (24,000) | (24,000) | (44,594) |
Balances, number of warrants (in shares) | 800,000 | 800,000 | 24,000 |
Balances, warrants, weighted average exercise price (in CAD per share) | $ / shares | $ 6.5 |  | $ 5.98 |
Issued, warrants, weighted average exercise price (in dollars per share) | (per share) |  | $ 6.25 | 0 |
Exercised, warrants, weighted average exercise price (in CAD per share) | $ / shares | 0 |  | 4.98 |
Cancelled, warrants, weighted average exercise price (in CAD per share) | $ / shares | 6.5 | $ 6.5 | 10.48 |
Balances, warrants, weighted average exercise price (in CAD per share) | $ / shares | $ 6.25 |  | $ 6.5 |
warrant, weighted average remaining life (years) (Year) | 4 years 7 months 24 days | 4 years 7 months 24 days | 8 months 1 day |
Unit warrants expiring December 15, 2022 [member] |  |  |  |
Statement Line Items [Line Items] |  |  |  |
warrants, exercise price (in CAD per share) | $ / shares |  |  | $ 5 |
Balances, number of warrants (in shares) | 0 | 0 | 22,000 |
Issued, number of warrants (in shares) |  |  | 0 |
Exercised, number of warrants (in shares) |  |  | (10,000) |
Cancelled, number of warrants (in shares) |  |  | (12,000) |
Balances, number of warrants (in shares) |  |  | 0 |

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