Other income, net (Tables)

12 Months Ended

Mar. 31, 2021

Other Income and Expenses [Abstract]

Schedule of Other income

Other income, net consisted of the following:

	Year Ended March 31,
	2019		2020		2021
	$ in thousands		$ in thousands		$ in thousands
Gain on disposal of property, plant and equipment #		5		—		237
Government subsidies		16		227		75
Gain from investment in financial instruments		45		83		75
Other gains		42		125		93
Other income, net		108		435		480