Common stock warrants (Details Narrative) - USD ($) |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
Dec. 31, 2021 |
|
| Class of Warrant or Right [Line Items] | |||
| Warrants maturity date | May 11, 2038 | ||
| Warrant redemption price | $ 0.10 | ||
| Weighted average outstanding warrant exercise price | $ 2.11 | $ 2.11 | |
| Weighted average contractual life of warrants | 16 years 3 months 18 days | 16 years 6 months | |
| Warrants issued | 0 | ||
| Warrants, intrinsic value | $ 0 | $ 0 | |
| Series D Common Stock Warrants [Member] | |||
| Class of Warrant or Right [Line Items] | |||
| Weighted average outstanding warrant exercise price | $ 1.60 | ||
| Warrants exercised | 2,954 | ||
| Series H Warrants [Member] | |||
| Class of Warrant or Right [Line Items] | |||
| Weighted average outstanding warrant exercise price | $ 7 | ||
| Warrants issued | 689,159 | ||
| Warrants term | 30 years | ||
| Warrants exercised | |||
| Series B Warrants [Member] | |||
| Class of Warrant or Right [Line Items] | |||
| Warrants exercised | 87,456 | 0 | |
| Series D Warrants [Member] | |||
| Class of Warrant or Right [Line Items] | |||
| Warrants exercised | 2,954 | 0 | |
| X | ||||||||||
- Definition Class of warrant or right issued. No definition available.
|
| X | ||||||||||
- Definition Warrant redemption price. No definition available.
|
| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- 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. No definition available.
|
| X | ||||||||||
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of non-option equity instruments exercised by participants. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options. No definition available.
|
| 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
|
| X | ||||||||||
- Definition Period between issuance and expiration 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 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|