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Acquisition - Schedule of Unaudited Pro Forma Information (Detail) - Barber-Nichols, Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Business Acquisition [Line Items] |  |  |  |
Net sales | $ 34,146 | $ 44,174 | $ 69,779 | $ 76,360
Net (loss) income | $ (231) | $ 4,374 | $ (2,256) | $ 5,149
Basic | $ (0.02) | $ 0.41 | $ (0.21) | $ 0.49
Diluted | $ (0.02) | $ 0.41 | $ (0.21) | $ 0.49

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