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Inventories - Major Classifications of Inventories (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Mar. 31, 2013
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Inventory Disclosure [Abstract] |  |
Raw materials and supplies | $ 2,677 | $ 2,865
Work in process | 12,163 | 13,470
Finished products | 560 | 572
Inventory Gross | 15,400 | 16,907
Less - progress payments | 4,312 | 5,736
Total | $ 11,088 | $ 11,171

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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6386567&loc=d3e3927-108312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 + Details
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