Rendering

Component: (Network and Table)
Network
100480 - Disclosure - Goodwill and Intangible Assets (Schedule of Intangible Assets Subject to Amortization) (Details)
(http://www.powellind.com/20160930/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsSubjectToAmortizationDetails)
TableSchedule Of Finite Lived Intangible Assets [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000080420 (http://www.sec.gov/CIK)
Finite-Lived Intangible Assets by Major ClassPurchased Technology
Finite Lived Intangible Assets [Line Items]Period [Axis]
2016-09-30
2015-09-30
Gross Carrying Value
11,749,000  
11,749,000  
Accumulated Amortization
(10,693,000) 
(10,359,000) 
Net Carrying Value
1,056,000  
 
1,390,000