Inventories - Major Classifications of Inventories (Detail) - USD ($) $ in Thousands |
Mar. 31, 2018 |
Mar. 31, 2017 |
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| Raw materials and supplies | $ 3,095 | $ 3,016 |
| Work in process | 17,546 | 12,573 |
| Finished products | 1,034 | 891 |
| Inventory Gross | 21,675 | 16,480 |
| Less – progress payments | 10,109 | 7,234 |
| Total | $ 11,566 | $ 9,246 |
| X | ||||||||||
- References No definition available.
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| 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://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount, after deduction of valuation reserves, other allowances, and customer advances received on long-term contracts or programs, of inventory expected to be converted to cash, sold or exchanged within the normal operating cycle. No definition available.
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| 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://www.xbrl.org/2003/role/presentationRef
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| 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://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of advances received from customers under long-term contracts which have been offset against inventories accounts at the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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