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Income Taxes (Details) - Schedule of statutory income tax rates - USD ($) | 12 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2021
Schedule Of Statutory Income Tax Rates Abstract |  |  |  |
Income tax expense at applicable statutory rate |  | $ 565,828 | $ 590,692 | $ 844,047
Nondeductible expenses |  |  | 181,910 | 12,238
Income not subject to tax | [1] | (421,297) | (539,572) | (98,326)
Income tax of other jurisdictions | [2] | (30) |  |
Nontaxable offshore profit |  | (113,777) | (143,098) | (664,621)
Benefit on tax concession (note (1)) | [3] | (765) | (1,285) | (22,573)
Changes in valuation allowance |  | 1,561 |  |
Total |  | $ 31,520 | $ 88,647 | $ 70,765
[1] | The Company also has entities domiciled in the British Virgin Islands, but such entities are not subject to income or capital gains taxes.
[2] | Top Fin and Top AM were established in Singapore, which are subject to income tax rate of 17%.
[3] | The provision for Hong Kong Profits Tax for 2023 is calculated at 16.5% (2022 and 2021: 16.5%) of the estimated assessable profits for the year, taking into account a reduction granted by the Hong Kong SAR Government of 100% of the tax payable for the year of assessment 2022-23 subject to a maximum reduction of HK$6,000 for each business (2022: a maximum reduction of HK$10,000 was granted for the year of assessment 2021-22 and was taken into account in calculating the provision for 2022, 2021: a maximum reduction of HK$10,000 was granted for the year of assessment 2020-21 and was taken into account in calculating the provision for 2021).

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- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. + References 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/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.7) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-9 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: 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 + Details
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- Definition Amount of increase (decrease) in interest income on nontaxable investment security. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph (a) -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph (c) -Subparagraph (2)(i) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph (c) -Subparagraph (2)(ii) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1402 -Paragraph (c) -Subparagraph (2)(iii) -Publisher SEC + Details
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