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Inventories | 9 Months Ended
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Jul. 31, 2012
Inventory Disclosure [Abstract] |
Inventories | Inventories The components of inventory at July 31, 2012 and October 31, 2011 consisted of the following:
| July 31, 2012 |  | October 31, 2011
Raw materials | $ | 18,642 |  |  | $ | 18,303 |
Work-in-process (1) | 30,353 |  |  | 21,798 |
Net Inventory | $ | 48,995 |  |  | $ | 40,101 |
(1) | Work-in-process includes the standard components of inventory that are used to build the typical modules or stack components that are intended to be used in future power plant orders. Included in Work-in-process as of July 31, 2012 is $9.9 million of completed standard components ready to be incorporated into power plants and deployed upon receipt of customer orders.
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 fuel cell stacks, which are subcomponents of a power plant. Work in process also includes costs related to modules which have not yet been dedicated to a particular commercial customer contract. Raw materials and work in process are net of valuation reserves of approximately $3.5 million and $2.6 million at July 31, 2012 and October 31, 2011, respectively. An inventory charge was recorded in the amount of $1.1 million during the three months ended July 31, 2012 for older generation balance of plant components.

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- Definition The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a, b, c -Article 5 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section A -Paragraph 9 -Chapter 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: 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 + Details
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