Intangible assets (Tables)

12 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets

Intangible assets are analyzed as follows:

	March 31,
	2019			2020
	$ in thousands			$ in thousands
Cost		5,951			5,566
Less: accumulated amortization		(3,613	)		(3,636	)
		2,338			1,930

Components of other intangible assets

The components of intangible assets are as follows:

	March 31,
	2019		2020
	$ in thousands		$ in thousands
Land use right of factory land in Shenzhen, Guangdong, PRC		1,014		780
Land use right of factory land in Xinxing, Guangdong, PRC		1,324		1,150
		2,338		1,930

Schedule of amortization expenses

As of March 31, 2020, future minimum amortization expenses in respect of intangible assets are as follows:

Year ending March 31,		$ in thousands
	2021		257
	2022		257
	2023		257
	2024		257
	2025		194
	Thereafter		708
	Total		1,930