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Inventories | 6 Months Ended
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Apr. 30, 2017
Inventory Disclosure [Abstract] |
Inventories | Note 5. Inventories The components of inventories as of April 30, 2017 and October 31, 2016 consisted of the following:
|  | April 30, 2017 |  |  | October 31, 2016 |
Raw materials |  | $ | 24,286 |  |  | $ | 25,286 |
Work-in-process (1) |  |  | 51,299 |  |  |  | 48,520 |
Inventories |  | $ | 75,585 |  |  | $ | 73,806 |
(1) | Included in work-in-process as of April 30, 2017 and October 31, 2016 was $42.6 million and $40.6 million, respectively, of completed standard components.
Raw materials consist mainly of various nickel powders and steels, various other components used in producing cell stacks and purchased components for balance of plant. Work-in-process inventory is comprised of material, labor, and overhead costs incurred to build balance of plant components, fuel cell stacks and modules, which are subcomponents of a power plant. Raw materials and work in process are net of a valuation allowance of approximately $0.2 million as of April 30, 2017 and October 31, 2016.

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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://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) -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 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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