Inventories - Major Classifications of Inventories (Detail) - USD ($) $ in Thousands |
Dec. 31, 2020 |
Mar. 31, 2020 |
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| Raw materials and supplies | $ 3,389 | $ 3,061 |
| Work in process | 12,386 | 18,018 |
| Finished products | 1,688 | 1,212 |
| Total | $ 17,463 | $ 22,291 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|