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Inventory | 6 Months Ended
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Sep. 30, 2018
Inventory Disclosure [Abstract] |
Inventory | Inventory Inventory, net of reserves, at September 30, 2018 and March 31, 2018 consisted of the following (in thousands):
| September 30, 2018 |  | March 31, 2018
Raw materials | $ | 5,996 |  |  | $ | 7,526 |
Work-in-process | 2,306 |  |  | 920 |
Finished goods | 6,716 |  |  | 8,767 |
Deferred program costs | 1,217 |  |  | 2,567 |
Net inventory | $ | 16,235 |  |  | $ | 19,780 |
The Company recorded inventory write-downs of $0.4 million and $0.1 million for the three months ended September 30, 2018 and 2017, respectively. The Company recorded inventory write-downs of $0.5 million and $0.4 million for the six months ended September 30, 2018 and 2017, respectively. These write downs were based on evaluating its inventory on hand for excess quantities and obsolescence. Deferred program costs as of September 30, 2018 and March 31, 2018 primarily represent costs incurred on programs where the Company needs to complete performance obligations before the related revenue and costs will be recognized.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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