Discontinued Operations - Results of Operations Included in Net Income (Loss) From Discontinued Operations (Details) - USD ($) $ in Thousands		12 Months Ended
	May 05, 2020	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Operating expenses:
Other income (expense)		$ (18)	$ 54	$ 297
Gain on disposal of discontinued operations after income tax		0	11,297	0
Net income (loss) from discontinued operations, net of tax		(180)	9,643	(3,852)
Agriculture and Weather Analytics Segment | Discontinued Operations, Held-for-sale
Results of discontinued operations
Service revenue		0	695	6,714
Cost of service revenues		0	350	2,566
Gross profit		0	345	4,148
Operating expenses:
Selling, general and administration		180	780	3,718
Research and development		0	407	4,282
Restructuring charges		0	837	0
Total operating expenses		180	2,024	8,000
Operating loss from discontinued operations		(180)	(1,679)	(3,852)
Other income (expense)		0	72	0
Loss from discontinued operation before income tax		(180)	(1,607)	(3,852)
Income tax expense			(47)	0
Net loss from discontinued operations		(180)	(1,654)	(3,852)
Gain on disposal of discontinued operations before income tax	$ 11,315	0	11,315	0
Income tax expense on gain on disposal		0	(18)	0
Gain on disposal of discontinued operations after income tax		0	11,297	0
Net income (loss) from discontinued operations, net of tax		$ (180)	$ 9,643	$ (3,852)