| In millions, except per share items | Apr-30-23 | Apr-30-22 | Apr-30-21 | Apr-30-20 | Apr-30-19 | Apr-30-18 | Apr-30-17 | Apr-30-16 |
| | S-1/A | 10-K/A | 10-K/A | 10-K | 10-K | 10-K | 10-K | 10-K |
| Operating Activities | | | | | | | | |
| Net Loss | -1.8 | -3.4 | -3.3 | -1.6 | -0.5 | -1.5 | -2.1 | -0.1 |
| |
| Adjustments to reconcile net loss to net cash used in operating activities | | | | | | | | |
| Amortization of right-of-use asset | | 0.0 | 0.0 | | | | | |
| Depreciation expense | | | | | | | | |
| Depletion expense | | 0.6 | 0.1 | | | | | |
| |
| Impairment of oil and gas properties | | | | | | | | |
| Gain on settlement of debt | | | | | | | 0.1 | |
| |
| Changes in operating assets and liabilities | | | | | | | | |
| Accounts receivable | 0.1 | 0.0 | -0.1 | | 0.0 | 0.0 | 0.0 | 0.0 |
| Prepaid expenses | 0.0 | 0.0 | 0.0 | | 0.0 | 0.0 | 0.0 | |
| Accounts payable and accrued liabilities | 0.1 | 0.0 | 0.2 | 0.1 | 0.1 | 0.2 | 0.1 | 0.1 |
| Net Cash Used In Operating Activities | -0.9 | -1.2 | -0.7 | -0.2 | 0.0 | -0.2 | -0.3 | 0.0 |
| |
| Investing Activities | | | | | | | | |
| Acquisition of property and equipment | | | | | | | | |
| Net Cash Used In Investing Activities | 0.1 | -5.7 | -2.5 | | | | | |
| |
| Financing Activities | | | | | | | | |
| Proceeds from issuance of common stock | | 3.9 | 5.4 | | | | | |
| Proceeds from convertible debenture | | | | 0.2 | 0.0 | 0.2 | 0.3 | |
| Repayment of convertible debenture | | 0.0 | -0.8 | | | | | |
| Payments of Stock Issuance Costs | | 0.0 | | | | | | |
| Net Cash Provided by Financing Activities | 0.6 | 4.9 | 5.3 | 0.2 | 0.0 | 0.2 | 0.3 | 0.0 |
| Cash - Beginning of Period | 0.1 | 2.1 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | |
| Cash - End of Period | 0.0 | 0.1 | 2.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| |
| Supplemental Disclosures | | | | | | | | |
| Interest paid | 0.0 | | | | | | | |
| |
| Non-cash investing and financing activities | | | | | | | | |