Common stock warrants (Details Narrative) - USD ($) |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Mar. 31, 2026 |
Dec. 31, 2025 |
Oct. 14, 2023 |
Dec. 31, 2022 |
Dec. 31, 2009 |
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| Class of Warrant or Right [Line Items] | |||||
| Warrants maturity date | Aug. 21, 1998 | ||||
| Warrant exercise price | $ 0.64 | $ 0.62 | $ 7 | ||
| Warrant redemption price | $ 0.10 | ||||
| Warrant outstanding | $ 689,159 | ||||
| Weighted average contractual life of warrants | 12 years 3 months | 13 years 3 months | |||
| Number of warrants exercised | 0 | ||||
| Warrants, intrinsic value | $ 110,500 | $ 237,150 | |||
| Series D Warrants [Member] | |||||
| Class of Warrant or Right [Line Items] | |||||
| Warrant exercise price | $ 0.02 | $ 0.02 | $ 0.02 | $ 1.60 | |
| Warrant redemption price | $ 0.10 | $ 0.10 | $ 0.10 | ||
| Warrants outstanding shares | 4,250,000 | 4,250,000 | |||
| Series H Warrants [Member] | |||||
| Class of Warrant or Right [Line Items] | |||||
| Warrant exercise price | $ 7 | $ 7 | |||
| Warrants outstanding shares | 413,512 | ||||
| Warrant outstanding | $ 413,512 | $ 413,512 | |||
| Number of warrants exercised |
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- Definition Warrant redemption price. No definition available.
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Number of warrants or rights outstanding. No definition available.
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- Definition Weighted-average contractual term remaining for equity-based award excluding option, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of non-option equity instruments exercised by participants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Expiration date of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in YYYY-MM-DD format. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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- Details
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