Consolidated Balance Sheet Detail - Additional Information (Detail) - USD ($) $ in Thousands		12 Months Ended
Feb. 28, 2021	Mar. 31, 2021	Mar. 31, 2020
Raw materials		$ 9,189	$ 9,737
Work in progress		9,105	8,522
Finished goods		3,717	2,242
Transition benefit costs			807
Termination benefit costs			1,323
New Chief Executive Officer [Member]
Transition benefit costs		3,825
Payments for transition arrangements	$ 1,800
Transition arrangements payments expected to be paid		2,025
Former Chief Executive Officer [Member]
Transition benefit costs		1,193
Former Chief Operating Officer [Member]
Transition benefit costs		371
MosaiQ Project [Member]
Raw materials		6,829	8,093
Work in progress		4,321	4,395
Finished goods		1,465	$ 368
Inventory provisions		$ 2,015

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Transition arrangements payments expected to be paid.

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Transition benefit costs.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.

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Amount of valuation reserve for inventory.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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