Income taxes (Details 1) - USD ($) |
Mar. 31, 2023 |
Dec. 31, 2022 |
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Deferred tax assets: | ||
Allowance for doubtful accounts | $ 37,403 | $ 37,242 |
Depreciation and amortization | ||
Impairment loss for investment | 34,947 | 34,797 |
Net operating loss carry forward | 496,494 | 494,364 |
Inventory reserve | 3,854 | 3,838 |
Right of use | 70,711 | 2,045 |
Less: valuation allowance | (513,397) | (442,832) |
Deferred tax assets, net | 130,012 | 129,454 |
Deferred tax liabilities: | ||
Recognition of intangible assets arising from business acquisition | (262,789) | (289,884) |
Deferred tax liabilities, net | (262,789) | (289,884) |
Total deferred tax liabilities, net | $ (132,777) | $ (160,430) |
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary difference from allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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