Income taxes (Details 1) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Operating Loss Carryforwards [Line Items]
Pre-tax (loss) income	$ (521,456)	$ (322,821)	$ (480,004)	$ (1,116,449)
Current tax	204	4,134	636	5,270
Deferred tax
Effective income taxes	$ 204	$ 4,134	$ 636	$ 5,270
U.S. federal corporate income tax rate [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Deduction, Percent	21.00%	21.00%	21.00%	21.00%
Philippine corporate income tax rate [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Deduction, Percent	30.00%	30.00%	30.00%	30.00%
P.R.C. corporate income tax rate [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Deduction, Percent	25.00%	25.00%	25.00%	25.00%
Hong Kong corporate income tax rate [Member]
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Deduction, Percent	16.50%	16.50%	16.50%	16.50%

Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(1)(Note 1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-SubTopic 10
-Topic 740
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-9

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations attributable to deduction. Includes, but is not limited to, dividend deduction, deduction for dividend paid to employee stock ownership plan (ESOP), Medicare prescription drug benefit subsidy deduction, and other deductions.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (b)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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