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Business and Organization | 12 Months Ended
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Sep. 30, 2011
Business and Organization [Abstract] |
Business and Organization | A. Business and Organization Powell Industries, Inc. (we, us, our, Powell or the Company) was incorporated in the state of Delaware in 2004 as a successor to a Nevada company incorporated in 1968. The Nevada corporation was the successor to a company founded by William E. Powell in 1947, which merged into the Company in 1977. Our major subsidiaries, all of which are wholly-owned, include: Powell Electrical Systems, Inc.; Transdyn, Inc.; Powell Industries International, Inc.; Switchgear & Instrumentation Limited (S&I) and Powell Canada Inc. We develop, design, manufacture and service custom engineered-to-order equipment and systems for the management and control of electrical energy and other critical processes. Headquartered in Houston, Texas, we serve the transportation, environmental, energy, industrial and utility industries. In December 2009, we acquired the business and certain assets of PowerComm Inc. and its subsidiaries, Redhill Systems Ltd., Nextron Corporation, PCG Technical Services Inc. and Concorde Metal Manufacturing Ltd (the entire business of which is referred to herein as Powell Canada) for $23.4 million, excluding debt assumed of $15.1 million and acquisition-related expenses. Powell Canada is headquartered in Edmonton, Alberta, Canada, and provides electrical, maintenance and services. Powell Canada is also a manufacturer of switchgear and related products, primarily serving the oil and gas industry in western Canada. The operating results of Powell Canada are included in our Electrical Power Products business segment from the acquisition date. For further information on the Powell Canada acquisition, see Note D.

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