Development expenditure (Tables)

6 Months Ended

Sep. 30, 2021

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Components of Development Expenditure

Development expenditure incurred comprises the following (in thousands):

	Three Months Ended September 30,				Six Months Ended September 30,
	2020		2021		2020		2021
Costs capitalized (1)	647		985		1,383		1,956
Costs expensed (2)	1,046		1,314		2,040		2,751
Total costs incurred	1,693		2,299		3,423		4,707
Percentage capitalized	38.2	%	42.8	%	40.4	%	41.6	%
(1) Costs capitalized relate only to the development of internal-use software. Product development costs are expensed when incurred.
(2) Costs expensed are included in Administration and other expenses in the Condensed Consolidated Statement of Income.