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Leases (Details) - Schedule of supplemental information related to operating leases - USD ($) $ in Thousands		12 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Schedule of Supplemental Information Related to Operating Leases [Abstract]
Operating lease cost	[1]	$ 888	$ 871	$ 731
Weighted Average Remaining Lease Term - Operating leases		8 years 1 month 24 days	11 years 2 months 19 days	9 years 21 days
Weighted Average Discount Rate - Operating leases		7.56%	8.59%	8.17%
[1] Included unconditional government subsidy $66, $nil and $247 for factory space and dormitories located in Shenzhen in 2021, 2022 and 2023 respectively.

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- References

No definition available.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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-Topic 842
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-Section 55
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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
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-Paragraph 53
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-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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