Cover
Cover | Feb. 26, 2021 | Dec. 08, 2020 |
Cover [Abstract] | ||
Document Type | 8-K | |
Document Period End Date | Feb. 26, 2021 | |
Entity Registrant Name | POWELL INDUSTRIES, INC. | |
Entity Incorporation, State or Country Code | DE | |
Entity File Number | 001-12488 | |
Entity Tax Identification Number | 88-0106100 | |
Entity Address, Address Line One | 8550 Mosley Road | |
Entity Address, City or Town | Houston | |
Entity Address, State or Province | TX | |
Entity Address, Postal Zip Code | 77075-1180 | |
City Area Code | 713 | |
Local Phone Number | 944-6900 | |
Written Communications | false | |
Soliciting Material | false | |
Pre-commencement Tender Offer | false | |
Pre-commencement Issuer Tender Offer | false | |
Title of 12(b) Security | Common Stock, par value $0.01 per share | |
Trading Symbol | POWL | |
Security Exchange Name | NASDAQ | |
Entity Emerging Growth Company | false | |
Amendment Flag | false | |
Entity Central Index Key | 0000080420 | |
Current Fiscal Year End Date | --09-30 |