| In millions, except per share items | Dec-31-22 | Sep-30-22 | Dec-31-21 | Sep-30-21 | Sep-30-20 |
| | 10-Q | S-1/A | 10-Q | S-1/A | S-1 |
| Operating activities | | | | | |
| Net loss | -2.3 | | -2.9 | | |
| |
| Items not involving cash: | | | | | |
| Amortization expense | 0.0 | | | | |
| Interest expense | 1.0 | | 0.8 | | |
| Amortization of debt discount | 0.0 | | 0.0 | | |
| Shares issued for services | 0.1 | | 0.3 | | |
| Share-based payments | | | 0.0 | | |
| Change in fair value of warrant liability | 0.1 | | 0.3 | | |
| Unrealized foreign exchange translation adjustment | 0.2 | | | | |
| Changes in non-cash working capital: | | | | | |
| Prepaid expenses and long-term deposits | 0.0 | | 0.0 | | |
| Other assets – GST receivable | 0.0 | | 0.0 | | |
| Accounts payable and accrued liabilities | 0.4 | | 0.2 | | |
| Lease liability | -0.1 | | -0.1 | | |
| Due to related parties | 0.4 | | 0.0 | | |
| Net cash flows used in operating activities | -0.4 | | -1.6 | | |
| |
| Investing activities | | | | | |
| Sale of digital assets | 0.0 | | | | |
| Purchase of digital assets | | | 0.0 | | |
| Net cash provided by (used in) investing activities | 0.0 | | 0.0 | | |
| |
| Financing activities | | | | | |
| Net proceeds from Convertible Notes | 0.3 | | 2.2 | | |
| Net proceeds from exercise of Warrants | | | 0.0 | | |
| Deferred share issuance costs | 0.0 | | -0.4 | | |
| Net cash flows provided by financing activities | 0.3 | | 1.8 | | |
| Effect of foreign exchange on cash | 0.0 | | 0.0 | | |
| (Decrease) increase in cash | 0.0 | | 0.1 | | |
| |
| Supplemental disclosures of cash flow information: | | | | | |
| Interest paid in cash | | | | | |
| Income taxes paid in cash | | | | | |
| Non-Cash activities for investing and financing activities: | | | | | |
| Deferred offering costs accrued but unpaid | 0.1 | | 0.5 | | |
| Reclassification of warrants to share capital | | | 6.4 | | |
| Renewal of lease | 1.1 | | | | |
| Shares issued for conversion of convertible notes | | | 0.3 | | |