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Quarterly Results of Operations (Unaudited) | 12 Months Ended
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Sep. 30, 2011
Quarterly Results of Operations (Unaudited) [Abstract] |
Quarterly Results of Operations (Unaudited) | O. Quarterly Results of Operations (Unaudited) The table below sets forth the unaudited consolidated operating results by fiscal quarter for the years ended September 30, 2011 and 2010 (in thousands, except per share data):
|  | 2011 Quarters |
|  | First |  |  | Second |  |  | Third |  |  | Fourth |  |  | 2011 |
Revenues |  | $ | 124,674 |  |  | $ | 125,111 |  |  | $ | 141,369 |  |  | $ | 171,243 |  |  | $ | 562,397 |
Gross profit |  |  | 25,865 |  |  |  | 24,877 |  |  |  | 21,864 |  |  |  | 27,324 |  |  |  | 99,930 |
Net income (loss) attributable to Powell Industries, Inc. |  |  | 2,432 |  |  |  | 1,733 |  |  |  | 73 |  |  |  | (6,953 | ) |  |  | (2,715 | )
Basic earnings (loss) per share |  |  | 0.21 |  |  |  | 0.15 |  |  |  | 0.01 |  |  |  | (0.59 | ) |  |  | (0.23 | )
Diluted earnings (loss) per share |  |  | 0.21 |  |  |  | 0.15 |  |  |  | 0.01 |  |  |  | (0.59 | ) |  |  | (0.23 | )
|  | 2010 Quarters |
|  | First |  |  | Second |  |  | Third |  |  | Fourth |  |  | 2010 |
Revenues |  | $ | 135,916 |  |  | $ | 142,135 |  |  | $ | 138,880 |  |  | $ | 133,761 |  |  | $ | 550,692 |
Gross profit |  |  | 37,817 |  |  |  | 36,533 |  |  |  | 38,244 |  |  |  | 29,463 |  |  |  | 142,057 |
Net income attributable to Powell Industries, Inc. |  |  | 9,644 |  |  |  | 9,860 |  |  |  | 10,286 |  |  |  | (4,782 | ) |  |  | 25,008 |
Basic earnings per share |  |  | 0.84 |  |  |  | 0.86 |  |  |  | 0.89 |  |  |  | (0.41 | ) |  |  | 2.17 |
Diluted earnings per share |  |  | 0.83 |  |  |  | 0.85 |  |  |  | 0.88 |  |  |  | (0.41 | ) |  |  | 2.14 |
The sum of the individual earnings per share amounts may not agree with year-to-date earnings per share as each period’s computation is based on the weighted-average number of shares outstanding during the period. Income before income taxes includes a $1.2 million gain recorded in the second quarter of fiscal 2011 resulting from cash received from the sale of our 50% equity investment in Kazakhstan. Income before taxes for fiscal 2011 includes an impairment charge of $7.2 million, which was recorded in the fourth quarter, to reflect the impairment for the value of the intangible assets that were recorded in relation to the acquisition of Powell Canada. Income before income taxes for fiscal 2010 includes an impairment charge of $7.5 million to reflect the impairment for the value of goodwill that was recorded in relation to the acquisition of Powell Canada.

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- Definition The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section G -Subsection 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 23, 24 -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 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 28 -Paragraph 30 -Subparagraph a-j -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 302 -Paragraph a Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=6952194&loc=d3e1280-108306 + Details
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