11. Sale of Research and Development Assets (Tables)

12 Months Ended

Apr. 30, 2021

Discontinued Operations and Disposal Groups [Abstract]

Discontinued operations summary

The following table summarizes the results of discontinued operations for the fiscal year ended April 30, 2019 (in thousands):

Other income	$	125
Gain on sale of research and development assets before income taxes		1,000
Income tax expense		284
Income from discontinued operations, net of tax	$	841