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Income Taxes - Summary of Net Deferred Income Tax Liability (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Mar. 31, 2022
--- | --- | ---
Components of Deferred Tax Assets and Liabilities [Abstract] |  |
Depreciation | $ (3,117) | $ (3,345)
Accrued compensation | 309 | 362
Goodwill | 224 | 180
Prepaid pension asset | (1,355) | (1,557)
Accrued pension liability | 245 | 291
Accrued postretirement benefits | 79 | 105
Compensated absences | 567 | 515
Inventories | (10) | 899
Warranty liability | 135 | 99
Accrued expenses | 1,276 | 1,230
Equity-based compensation | 230 | 240
Allowance for doubtful accounts | 422 | 0
Operating lease assets | (1,894) | (1,954)
Operating lease liabilities | 1,963 | 1,990
Acquisition costs | 142 | 152
Intangible assets | 236 | 158
New York State investment tax credit | 1,066 | 1,108
Research and development tax credit | 1,243 | 240
Research and development credit carryforward | 367 | 0
Net operating loss carryforwards | 2,205 | 2,748
Capital loss related to sale of Energy Steel | 4,211 | 4,211
Other | (129) | 26
Deferred Tax Assets, gross | 7,967 | 7,698
Less: Valuation allowance | (5,277) | (5,319)
Total | $ 2,690 | $ 2,379

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