Subsequent events (Narrative) (Details) - USD ($) |
9 Months Ended | |||||
|---|---|---|---|---|---|---|
Oct. 21, 2025 |
Oct. 13, 2025 |
Oct. 02, 2025 |
Oct. 01, 2025 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Subsequent Event [Line Items] | ||||||
| Proceeds from issuance of common stock | $ 9,790,015 | $ 5,470,000 | ||||
| Subsequent Event [Member] | ||||||
| Subsequent Event [Line Items] | ||||||
| Common shares issued | 225,000 | 110,030 | 125,000 | 250,000 | ||
| Sale of stock, price per share | $ 2.29 | $ 2.28 | $ 2.35 | $ 2.19 | ||
| Proceeds from issuance of common stock | $ 515,000 | $ 251,000 | $ 294,000 | $ 547,000 | ||
| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. No definition available.
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|