Annual report pursuant to Section 13 and 15(d)

Inventories - Major Classifications of Inventories (Detail)

v2.4.1.9
Inventories - Major Classifications of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 2,763us-gaap_InventoryRawMaterials $ 3,185us-gaap_InventoryRawMaterials
Work in process 13,685us-gaap_InventoryWorkInProcess 17,767us-gaap_InventoryWorkInProcess
Finished products 689us-gaap_InventoryFinishedGoods 646us-gaap_InventoryFinishedGoods
Inventory Gross 17,137us-gaap_InventoryGross 21,598us-gaap_InventoryGross
Less - progress payments 3,143us-gaap_ProgressPaymentsNettedAgainstInventoryForLongTermContractsOrPrograms 5,080us-gaap_ProgressPaymentsNettedAgainstInventoryForLongTermContractsOrPrograms
Total $ 13,994us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings $ 16,518us-gaap_InventoryNetOfAllowancesCustomerAdvancesAndProgressBillings