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Government Grants and Subsidies (Details) - Schedule of government subsidies received - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2021
Schedule of Government Subsidies Received [Abstract] |  |  |
Rental payment for factory space and dormitories located in Shenzhen (offset against cost of sales) | $ 247 |  | $ 66
Salaries of Hong Kong employees (offset against selling, general and administrative expenses) | 62 |  | 144
Total | $ 309 |  | $ 210

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- Definition Amount of excess of rental income recognized over rental payment required by lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 35 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481123/840-20-35-2 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481178/840-20-25-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 25 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479341/842-30-25-11 Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481178/840-20-25-2 + Details
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