Share based compensation (Details 2) - $ / shares	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Share based compensation
Number Of Stock Options, Outstanding, Beginning	2,647,820	2,927,820	461,320
Number Of Stock Options, Granted	5,750,000	0	2,716,500
Number Of Stock Options, Exercised	(310,799)	0
Number of stock Options, Forfeited	0	(180,000)	(100,000)
Number Of Stock Options, Expired	(208,787)	(100,000)	(150,000)
Number Of Stock Options, Outstanding, Ending	7,878,234	2,647,820	2,927,820
Number Of Stock Options, Exercisable	998,233	777,820	877,820
Weighted Average Exercise Price, Outstanding, Beginning	$ 0.30	$ 0.32	$ 0.51
Weighted Average Exercise Price, Granted	0.28	0	0.22
Weighted Average Exercise Price, Exercised	(0.21)	0
Weighted Average Exercise Price, Forfeited	0	(0.22)	(0.22)
Weighted Average Exercise Price, Expired	(0.48)	(0.52)	(0.59)
Weighted Average Exercise Price, Outstanding, Ending	0.27	0.24	0.25
Weighted Average Exercise Price, Exercisable	$ 0.23	$ 0.30	$ 0.32

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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