Commitments and Contingencies - Additional Information (Detail) $ in Thousands	12 Months Ended
Mar. 31, 2021 USD ($) Contracts $ / shares $ / £	Mar. 31, 2020 USD ($)
Commitments And Contingencies [Line Items]
Total assets measured at fair value	$ 355
Total liabilities measured at fair value		$ 227
Preference share dividend percentage	7.00%	7.00%
Subscriptions price of stock	$ 25,000
Certain MosaiQ Products [Member] \| TTP plc [Member]
Commitments And Contingencies [Line Items]
Royalty term	20 years
MosaiQ Microarrays [Member] \| Catalloid Products, Inc. [Member]
Commitments And Contingencies [Line Items]
Royalty term	10 years
7% Cumulative Redeemable Preference Shares [Member]
Commitments And Contingencies [Line Items]
Preference share dividend percentage	7.00%	7.00%
Preferred stock, no par value \| $ / shares
April 2021 through June 2021 [Member]
Commitments And Contingencies [Line Items]
Number of forward exchange contracts \| Contracts	3
Forward exchange contracts sold	$ 500
Forward exchange contracts exchange rate pounds sterling to US dollar \| $ / £	1.2630
July 2021 through September 2021 [Member]
Commitments And Contingencies [Line Items]
Number of forward exchange contracts \| Contracts	3
Forward exchange contracts sold	$ 500
Forward exchange contracts exchange rate pounds sterling to US dollar \| $ / £	1.26
October 2021 through December 2021 [Member]
Commitments And Contingencies [Line Items]
Number of forward exchange contracts \| Contracts	3
Forward exchange contracts sold	$ 500
Forward exchange contracts exchange rate pounds sterling to US dollar \| $ / £	1.3090
January 2022 through March 2022
Commitments And Contingencies [Line Items]
Number of forward exchange contracts \| Contracts	3
Forward exchange contracts sold	$ 500
Forward exchange contracts exchange rate pounds sterling to US dollar \| $ / £	1.3735

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