Consolidated Balance Sheet Detail - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2018	Mar. 31, 2019
Raw materials	$ 9,227,000			$ 8,216,000
Work in progress	7,595,000			4,959,000
Finished goods	2,969,000			2,376,000
Termination benefit costs	856,000	$ 0	$ 0
Transition benefit costs	400,000	$ 0	$ 0
MosaiQ Project [Member]
Raw materials	7,520,000			6,187,000
Work in progress	3,980,000			2,311,000
Finished goods	$ 641,000			$ 235,000

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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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