$POWL
POWELL INDUSTRIES INC Stock $powl

$powl Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-K Financial Statement

#000008042021000045 Filed on December 08, 2021

Income Statement

Concept	2021 Q3	2021	2020 Q3
Revenue	$129.5M	$470.6M	$114.7M
YoY Change	12.85%	-9.25%	-22.75%
Cost Of Revenue	$107.0M	$395.5M	$93.00M
YoY Change	15.04%	-6.71%	-22.44%
Gross Profit	$22.47M	$75.06M	$21.72M
YoY Change	3.46%	-20.63%	-23.94%
Gross Profit Margin	17.36%	15.95%	18.93%
Selling, General & Admin	$16.96M	$67.22M	$16.30M
YoY Change	4.04%	-0.66%	-17.26%
% of Gross Profit	75.46%	89.55%	75.05%
Research & Development	$1.624M	$6.700M	$1.400M
YoY Change	16.0%	6.35%	7.69%
% of Gross Profit	7.23%	8.93%	6.45%
Depreciation & Amortization	$2.436M	$10.34M	$2.600M
YoY Change	-6.31%	-1.93%	0.0%
% of Gross Profit	10.84%	13.77%	11.97%
Operating Expenses	$18.61M	$73.92M	$17.70M
YoY Change	5.12%	-0.06%	-16.11%
Operating Profit	$3.865M	$1.019M	$4.020M
YoY Change	-3.86%	-94.66%	-46.08%
Interest Expense	-$5.000K	$204.0K	$0.00
YoY Change		-10.53%	-100.0%
% of Operating Profit	-0.13%	20.02%	0.0%
Other Income/Expense, Net		$0.00	$500.0K
YoY Change		-100.0%
Pretax Income	$3.859M	$1.092M	$4.500M
YoY Change	-14.24%	-94.63%	-43.75%
Income Tax	$599.0K	$461.0K	$1.500M
% Of Pretax Income	15.52%	42.22%	33.33%
Net Earnings	$3.261M	$631.0K	$2.983M
YoY Change	9.32%	-96.21%	-54.37%
Net Earnings / Revenue	2.52%	0.13%	2.6%
Basic Earnings Per Share	$0.28	$0.05	$0.26
Diluted Earnings Per Share	$0.28	$0.05	$0.25
COMMON SHARES
Basic Shares Outstanding	11.69M shares	11.71M shares	11.61M shares
Diluted Shares Outstanding		11.79M shares

Balance Sheet

Concept	2021 Q3	2021	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$134.0M	$134.0M	$178.9M
YoY Change	-25.11%	-25.11%	43.46%
Cash & Equivalents	$114.3M	$114.3M	$160.2M
Short-Term Investments	$19.67M	$19.67M	$18.70M
Other Short-Term Assets	$1.599M	$5.981M	$1.948M
YoY Change	-17.92%	-5.06%	-26.49%
Inventory	$29.84M	$29.84M	$28.97M
Prepaid Expenses	$4.382M		$4.402M
Receivables	$78.30M	$132.5M	$69.96M
Other Receivables	$161.0K	$161.0K	$400.0K
Total Short-Term Assets	$302.5M	$302.5M	$335.7M
YoY Change	-9.89%	-9.9%	2.16%
LONG-TERM ASSETS
Property, Plant & Equipment	$109.5M	$112.9M	$114.4M
YoY Change	-4.3%	-5.59%	-5.33%
Goodwill	$1.000M		$1.000M
YoY Change	0.0%		0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$15.18M	$19.82M	$12.23M
YoY Change	24.15%	24.64%	5.61%
Total Long-Term Assets	$133.7M	$133.7M	$136.6M
YoY Change	-2.11%	-2.1%	-1.6%
TOTAL ASSETS
Total Short-Term Assets	$302.5M	$302.5M	$335.7M
Total Long-Term Assets	$133.7M	$133.7M	$136.6M
Total Assets	$436.2M	$436.2M	$472.3M
YoY Change	-7.64%	-7.65%	1.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$45.25M	$45.25M	$35.03M
YoY Change	29.17%	29.28%	-31.56%
Accrued Expenses	$24.34M	$24.34M	$26.90M
YoY Change	-9.51%	-9.51%	16.45%
Deferred Revenue	$42.43M		$79.45M
YoY Change	-46.59%		11.17%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$400.0K	$400.0K	$400.0K
YoY Change	0.0%	0.0%	0.0%
Total Short-Term Liabilities	$121.2M	$121.2M	$152.9M
YoY Change	-20.79%	-20.76%	-3.13%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$400.0K
YoY Change	-100.0%	-100.0%	-50.0%
Other Long-Term Liabilities	$2.787M	$13.81M	$2.161M
YoY Change	28.97%	12.3%	-30.63%
Total Long-Term Liabilities	$2.787M	$13.81M	$2.561M
YoY Change	8.82%	8.76%	-34.58%
TOTAL LIABILITIES
Total Short-Term Liabilities	$121.2M	$121.2M	$152.9M
Total Long-Term Liabilities	$2.787M	$13.81M	$2.561M
Total Liabilities	$135.0M	$135.0M	$165.7M
YoY Change	-18.52%	-18.55%	-1.55%
SHAREHOLDERS EQUITY
Retained Earnings	$282.5M		$294.0M
YoY Change	-3.92%		1.59%
Common Stock	$63.95M		$62.00M
YoY Change	3.15%		4.81%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$25.00M		$25.00M
YoY Change	0.0%		0.0%
Treasury Stock Shares	806.0K shares		806.0K shares
Shareholders Equity	$301.2M	$301.2M	$306.6M
YoY Change
Total Liabilities & Shareholders Equity	$436.2M	$436.2M	$472.3M
YoY Change	-7.64%	-7.65%	1.04%

Cashflow Statement

Concept	2021 Q3	2021	2020 Q3
OPERATING ACTIVITIES
Net Income	$3.261M	$631.0K	$2.983M
YoY Change	9.32%	-96.21%	-54.37%
Depreciation, Depletion And Amortization	$2.436M	$10.34M	$2.600M
YoY Change	-6.31%	-1.93%	0.0%
Cash From Operating Activities	$9.232M	-$30.46M	$19.00M
YoY Change	-51.41%	-142.08%	-45.56%
INVESTING ACTIVITIES
Capital Expenditures	-$451.0K	$2.891M	-$800.0K
YoY Change	-43.62%	-43.65%	-27.27%
Acquisitions
YoY Change
Other Investing Activities	$0.00	$427.0K	-$11.20M
YoY Change	-100.0%	-103.44%
Cash From Investing Activities	-$451.0K	-$2.464M	-$12.00M
YoY Change	-96.24%	-85.95%	1100.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net		$400.0K
YoY Change		0.0%
Cash From Financing Activities	-3.040M	-$13.17M	-3.000M
YoY Change	1.33%	0.6%	-11.76%
NET CHANGE
Cash From Operating Activities	9.232M	-$30.46M	19.00M
Cash From Investing Activities	-451.0K	-$2.464M	-12.00M
Cash From Financing Activities	-3.040M	-$13.17M	-3.000M
Net Change In Cash	5.741M	-$46.10M	4.000M
YoY Change	43.53%	-210.39%	-86.89%
FREE CASH FLOW
Cash From Operating Activities	$9.232M	-$30.46M	$19.00M
Capital Expenditures	-$451.0K	$2.891M	-$800.0K
Free Cash Flow	$9.683M	-$33.35M	$19.80M
YoY Change	-51.1%	-149.58%	-45.0%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Entity Central Index Key EntityCentralIndexKey	0000080420
CY2021	dei	Amendment Flag AmendmentFlag	false
CY2021	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-12488
CY2021	dei	Entity Registrant Name EntityRegistrantName	Powell Industries, Inc.
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
CY2021Q1	dei	Entity Public Float EntityPublicFloat	304000000	USD
CY2021	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2021	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021	dei	Entity Shell Company EntityShellCompany	false
CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	88-0106100
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	8550 Mosley Road
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	Houston
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2021	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	77075-1180
CY2021	dei	City Area Code CityAreaCode	713
CY2021	dei	Local Phone Number LocalPhoneNumber	944-6900
CY2021	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
CY2021	dei	Trading Symbol TradingSymbol	POWL
CY2021	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2021	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2021	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2021	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2021	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2021	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2021	dei	Entity Small Business EntitySmallBusiness	false
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	11724243	shares
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	114314000	USD
CY2020Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	160216000	USD
CY2021Q3	us-gaap	Short Term Investments ShortTermInvestments	19667000	USD
CY2020Q3	us-gaap	Short Term Investments ShortTermInvestments	18705000	USD
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	333000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	510000	USD
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	78304000	USD
CY2020Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	69957000	USD
CY2021Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	54199000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	50995000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	29835000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	28968000	USD
CY2021Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	161000	USD
CY2020Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	467000	USD
CY2021Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	4382000	USD
CY2020Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	4402000	USD
CY2021Q3	us-gaap	Other Assets Current OtherAssetsCurrent	1599000	USD
CY2020Q3	us-gaap	Other Assets Current OtherAssetsCurrent	1948000	USD
CY2021Q3	us-gaap	Assets Current AssetsCurrent	302461000	USD
CY2020Q3	us-gaap	Assets Current AssetsCurrent	335658000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	109457000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	114372000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3453000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5217000	USD
CY2021Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1003000	USD
CY2020Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	1161000	USD
CY2021Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	4639000	USD
CY2020Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	3644000	USD
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	15179000	USD
CY2020Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	12226000	USD
CY2021Q3	us-gaap	Assets Assets	436192000	USD
CY2020Q3	us-gaap	Assets Assets	472278000	USD
CY2021Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	400000	USD
CY2020Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	400000	USD
CY2021Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	45247000	USD
CY2020Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	35029000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	42433000	USD
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	79445000	USD
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	20395000	USD
CY2020Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	21739000	USD
CY2021Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2531000	USD
CY2020Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2771000	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1415000	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2352000	USD
CY2021Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1076000	USD
CY2020Q3	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1861000	USD
CY2021Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	7659000	USD
CY2020Q3	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	9350000	USD
CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	121156000	USD
CY2020Q3	us-gaap	Liabilities Current LiabilitiesCurrent	152947000	USD
CY2021Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0	USD
CY2020Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	400000	USD
CY2021Q3	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	8613000	USD
CY2020Q3	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	6710000	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	2413000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3434000	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2787000	USD
CY2020Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2161000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	134969000	USD
CY2020Q3	us-gaap	Liabilities Liabilities	165652000	USD
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2020Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q3	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	30000000	shares
CY2020Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	30000000	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	12497691	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	12422411	shares
CY2021Q3	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	125000	USD
CY2020Q3	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	124000	USD
CY2021Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	63948000	USD
CY2020Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	61998000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	282505000	USD
CY2020Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	294016000	USD
CY2020Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	806018	shares
CY2021Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	806018	shares
CY2021Q3	us-gaap	Treasury Stock Value TreasuryStockValue	24999000	USD
CY2020Q3	us-gaap	Treasury Stock Value TreasuryStockValue	24999000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-20356000	USD
CY2020Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-24513000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	301223000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	306626000	USD
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	436192000	USD
CY2020Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	472278000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	470559000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	518499000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	517180000	USD
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	395496000	USD
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	423924000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	430204000	USD
CY2021	us-gaap	Gross Profit GrossProfit	75063000	USD
CY2020	us-gaap	Gross Profit GrossProfit	94575000	USD
CY2019	us-gaap	Gross Profit GrossProfit	86976000	USD
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	67217000	USD
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	67662000	USD
CY2019	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	69950000	USD
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6670000	USD
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6265000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6327000	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	157000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	177000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	177000	USD
CY2021	us-gaap	Insurance Recoveries InsuranceRecoveries	0	USD
CY2020	us-gaap	Insurance Recoveries InsuranceRecoveries	0	USD
CY2019	us-gaap	Insurance Recoveries InsuranceRecoveries	950000	USD
CY2021	us-gaap	Restructuring Charges RestructuringCharges	0	USD
CY2020	us-gaap	Restructuring Charges RestructuringCharges	1400000	USD
CY2019	us-gaap	Restructuring Charges RestructuringCharges	11000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	1019000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	19071000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	11461000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	0	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	506000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	0	USD
CY2021	us-gaap	Interest Expense InterestExpense	204000	USD
CY2020	us-gaap	Interest Expense InterestExpense	228000	USD
CY2019	us-gaap	Interest Expense InterestExpense	230000	USD
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	277000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	981000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	1103000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1092000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20330000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12334000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	461000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3670000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2444000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	631000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	16660000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	9890000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.05
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.43
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.42
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11705000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11624000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11571000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11789000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11693000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11634000	shares
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.04
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.04
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.04
CY2021	us-gaap	Net Income Loss NetIncomeLoss	631000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	16660000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	9890000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	4253000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	60000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2743000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	96000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	26000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	25000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4788000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	16694000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7122000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	301644000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	9890000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-2743000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3839000	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1454000	USD
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	11998000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-7000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	25000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	299153000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	16660000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	60000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3474000	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	629000	USD
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12066000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-7000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	26000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	306626000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	631000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	4253000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2583000	USD
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	632000	USD
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	12142000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-26000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	96000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	301223000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	631000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	16660000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	9890000	USD
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	10335000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	10538000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	12032000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	2583000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	3474000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	3839000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	48000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	258000	USD
CY2019	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	233000	USD
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-995000	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	1473000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	820000	USD
CY2021	powl	Gain Loss On Cash Surrender Value Of Life Insurance GainLossOnCashSurrenderValueOfLifeInsurance	0	USD
CY2020	powl	Gain Loss On Cash Surrender Value Of Life Insurance GainLossOnCashSurrenderValueOfLifeInsurance	506000	USD
CY2019	powl	Gain Loss On Cash Surrender Value Of Life Insurance GainLossOnCashSurrenderValueOfLifeInsurance	0	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	7509000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-41969000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	20193000	USD
CY2021	powl	Increase Decrease In Contract With Customer Asset And Liability Net IncreaseDecreaseInContractWithCustomerAssetAndLiabilityNet	39951000	USD
CY2020	powl	Increase Decrease In Contract With Customer Asset And Liability Net IncreaseDecreaseInContractWithCustomerAssetAndLiabilityNet	-12546000	USD
CY2019	powl	Increase Decrease In Contract With Customer Asset And Liability Net IncreaseDecreaseInContractWithCustomerAssetAndLiabilityNet	-55333000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	599000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-304000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	7989000	USD
CY2021	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-473000	USD
CY2020	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	720000	USD
CY2019	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	6681000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-412000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-662000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2626000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	9760000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-15309000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	9550000	USD
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-3151000	USD
CY2020	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	465000	USD
CY2019	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	1419000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	1552000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	860000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	230000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-30461000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	72394000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	68759000	USD
CY2021	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	27735000	USD
CY2020	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	18553000	USD
CY2019	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	5869000	USD
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	27688000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	6146000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Shortterm Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfShorttermInvestments	13088000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2891000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5130000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	4255000	USD
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	474000	USD
CY2020	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2019	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2464000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-17537000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	2964000	USD
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	400000	USD
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	400000	USD
CY2019	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	400000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	632000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	629000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1454000	USD
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	12142000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	12066000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	11998000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13174000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13095000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13852000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-46099000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	41762000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	57871000	USD
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	197000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-185000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-957000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	160216000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	118639000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	61725000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	114314000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	160216000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	118639000	USD
CY2021	us-gaap	Nature Of Operations NatureOfOperations	Business and Organization<div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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 company 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.; Powell (UK) Limited; Powell Canada Inc.; and Powell Industries International, B.V.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We develop, design, manufacture and service custom-engineered equipment and systems which (1) distribute, control and monitor the flow of electrical energy and (2) provide protection to motors, transformers and other electrically powered equipment. Our principal products include integrated power control room substations (PCRs®), custom-engineered modules, electrical houses (E-Houses), traditional and arc-resistant distribution switchgear and control gear, medium-voltage circuit breakers, monitoring and control communications systems, motor control centers, switches and bus duct systems. These products are designed for application voltages ranging from 480 volts to 38,000 volts. Our products are used in the oil and gas markets, onshore and offshore production, liquefied natural gas (LNG) facilities and terminals, pipeline, refineries and petrochemical plants. Additionally, we manufacture products for the electric utility, light rail traction power as well as mining and metals, pulp and paper and other municipal, commercial and industrial markets. Our product scope includes designs tested to meet both U.S. and international standards, under both the American National Standards Institute (ANSI) and International Electrotechnical Commission (IEC). We assist customers by providing value-added services such as spare parts, field service inspection, installation, commissioning, modification and repair, retrofit and retrofill components for existing systems and replacement circuit breakers for switchgear that is obsolete or that is no longer produced by the original manufacturer. We seek to establish long-term relationships with the end users of our systems as well as the design and construction engineering firms contracted by those end users. We believe that our culture of safety and focus on customer satisfaction, along with our financial strength, allow us to continue to capitalize on opportunities in the industries we serve.</span></div><div style="margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">References to Fiscal 2021, Fiscal 2020 and Fiscal 2019 used throughout these Notes to Consolidated Financial Statements relate to our fiscal years ended September 30, 2021, 2020 and 2019, respectively.</span></div><div style="margin-top:12pt;text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Impact of the COVID-19 Pandemic and Oil and Gas Commodity Market</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%"> Volatility </span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">on Powell</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The COVID-19 pandemic continues to impact global energy markets. This pandemic has negatively impacted demand, which in turn has resulted in considerable volatility across the oil and gas commodity markets. As a result, some of our industrial customers are deferring or suspending their planned capital expenditures. Certain of our customers have asked that we delay or cancel our manufacturing on their projects as their operations have been negatively impacted by this pandemic and the reduced oil and gas demand which has resulted in recognition of cancellation fees based on contract terms and the extent of our progress on the projects. We continue to work with and review the contracts with our key suppliers who have been impacted by this pandemic to ensure that we are able to meet our customer commitments.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The consequences of a prolonged global economic decline could include, but are not limited to, a continued reduction in commercial and industrial activity. Accordingly, the Company cannot reasonably estimate the duration or severity of this pandemic, or the extent to which the disruption may materially impact our business, results of operations or cash flows. We will take prudent measures to maintain our strong liquidity and cash position, which may include reducing our capital expenditures and research and development costs, as well as reducing or eliminating future dividend payments.</span></div>
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with accounting principles generally accepted in the United States (U.S. GAAP) requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying footnotes. The most significant estimates used in our consolidated financial statements </span></div>affect revenue recognition and estimated cost recognition on our customer contracts, the allowance for credit losses, provision for excess and obsolete inventory, warranty accruals and income taxes. The amounts recorded for warranties, legal, income taxes, impairment of long-lived assets (when applicable), liquidated damages and other contingent liabilities require judgments regarding the amount of expenses that will ultimately be incurred. We base our estimates on historical experience, forecasts and various other assumptions, as well as the specific circumstances surrounding these contingent liabilities, in evaluating the amount of liability that should be recorded. Additionally, the recognition of deferred tax assets requires estimates related to future income and other assumptions regarding timing and future profitability because the ultimate realization of net deferred tax assets is dependent on the generation of future taxable income during periods in which temporary differences become deductible. Estimates routinely change as new events occur, additional information becomes available or operating environments change. Actual results may differ from our prior estimates.
CY2021	powl	Interest Paid Net Of Interest Income InterestPaidNetOfInterestIncome	-73000	USD
CY2020	powl	Interest Paid Net Of Interest Income InterestPaidNetOfInterestIncome	-753000	USD
CY2019	powl	Interest Paid Net Of Interest Income InterestPaidNetOfInterestIncome	-873000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1886000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1770000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-5219000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	226000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	264000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	1248000	USD
CY2021Q3	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss Current ContractWithCustomerReceivableAfterAllowanceForCreditLossCurrent	7400000	USD
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6700000	USD
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6300000	USD
CY2019	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	6300000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	631000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	16660000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	9890000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11705000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11624000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11571000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	84000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	69000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	63000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11789000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11693000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11634000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.05
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.43
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.42
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.85
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	510000	USD
CY2019Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	301000	USD
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	48000	USD
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	258000	USD
CY2021	powl	Allowance For Doubtful Accounts Receivable Write Offs Recoveries AllowanceForDoubtfulAccountsReceivableWriteOffsRecoveries	242000	USD
CY2020	powl	Allowance For Doubtful Accounts Receivable Write Offs Recoveries AllowanceForDoubtfulAccountsReceivableWriteOffsRecoveries	32000	USD
CY2021	powl	Increase Decrease Due To Foreign Currency Translation IncreaseDecreaseDueToForeignCurrencyTranslation	17000	USD
CY2020	powl	Increase Decrease Due To Foreign Currency Translation IncreaseDecreaseDueToForeignCurrencyTranslation	-17000	USD
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	333000	USD
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	510000	USD
CY2021Q3	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	33149000	USD
CY2020Q3	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	31202000	USD
CY2021Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	1147000	USD
CY2020Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	1539000	USD
CY2021Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	4461000	USD
CY2020Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	3773000	USD
CY2021Q3	us-gaap	Inventory Net InventoryNet	29835000	USD
CY2020Q3	us-gaap	Inventory Net InventoryNet	28968000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	247605000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	258117000	USD
CY2021Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	138148000	USD
CY2020Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	143745000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	109457000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	114372000	USD
CY2021	us-gaap	Depreciation Depreciation	10200000	USD
CY2020	us-gaap	Depreciation Depreciation	10400000	USD
CY2019	us-gaap	Depreciation Depreciation	11900000	USD
CY2020Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2771000	USD
CY2019Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2946000	USD
CY2021	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	2140000	USD
CY2020	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	2286000	USD
CY2021	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	2406000	USD
CY2020	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	2463000	USD
CY2021	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-26000	USD
CY2020	us-gaap	Standard And Extended Product Warranty Accrual Foreign Currency Translation Gain Loss StandardAndExtendedProductWarrantyAccrualForeignCurrencyTranslationGainLoss	-2000	USD
CY2021Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2531000	USD
CY2020Q3	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	2771000	USD
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	414900000	USD
CY2021Q3	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	291000000	USD
CY2021	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	12500000	USD
CY2020	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	11300000	USD
CY2021Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	54199000	USD
CY2020Q3	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	50995000	USD
CY2021Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	42433000	USD
CY2020Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	79445000	USD
CY2021Q3	powl	Contract With Customer Asset Liability Net Current ContractWithCustomerAssetLiabilityNetCurrent	11766000	USD
CY2020Q3	powl	Contract With Customer Asset Liability Net Current ContractWithCustomerAssetLiabilityNetCurrent	-28450000	USD
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	69100000	USD
CY2021Q3	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss ContractWithCustomerReceivableAfterAllowanceForCreditLoss	9600000	USD
CY2020Q3	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss ContractWithCustomerReceivableAfterAllowanceForCreditLoss	6900000	USD
CY2021Q3	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss Current ContractWithCustomerReceivableAfterAllowanceForCreditLossCurrent	7400000	USD
CY2021Q3	us-gaap	Contract With Customer Receivable After Allowance For Credit Loss Noncurrent ContractWithCustomerReceivableAfterAllowanceForCreditLossNoncurrent	2200000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	470559000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	518499000	USD
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	470559000	USD
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	400000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	518499000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	1000000	USD
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	200000	USD
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	200000	USD
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	200000	USD
CY2020Q3	us-gaap	Long Term Debt LongTermDebt	800000	USD
CY2021Q3	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	400000	USD
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	400000	USD
CY2021Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	0	USD
CY2020Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	400000	USD
CY2021Q3	powl	Commitments And Contingencies Additional Bonding Capacity CommitmentsAndContingenciesAdditionalBondingCapacity	457000000	USD
CY2021	powl	Credit Agreement Cash Collateral Requirement For Guarantees Period Greater Than CreditAgreementCashCollateralRequirementForGuaranteesPeriodGreaterThan	P2Y
CY2021Q3	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	1800000	USD
CY2021	powl	Loss Contingency Probable Loss In Period LossContingencyProbableLossInPeriod	1100000	USD
CY2021	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	1100000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	911000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	945000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-30000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1350000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	472000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1186000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	186000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	73000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	66000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	88000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1456000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2197000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1624000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1062000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1045000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	366000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-91000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	457000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	97000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	519000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-3000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-995000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1473000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	820000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	461000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3670000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2444000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	3076000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	21243000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	11859000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-1984000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-913000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	475000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1092000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20330000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	12334000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.25
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.05
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.04
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	1.01
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.13
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.07
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.10
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.01
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.10
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Repatriation Of Foreign Earnings EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings	0.01
CY2021	powl	Effective Income Tax Rate Reconciliation Change In Foreign And Domestic Valuation Allowance Percent EffectiveIncomeTaxRateReconciliationChangeInForeignAndDomesticValuationAllowancePercent	-0.62
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2020	powl	Effective Income Tax Rate Reconciliation Change In Foreign And Domestic Valuation Allowance Percent EffectiveIncomeTaxRateReconciliationChangeInForeignAndDomesticValuationAllowancePercent	-0.04
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.42
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.18
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.20
CY2019	powl	Effective Income Tax Rate Reconciliation Change In Foreign And Domestic Valuation Allowance Percent EffectiveIncomeTaxRateReconciliationChangeInForeignAndDomesticValuationAllowancePercent	0.02
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.19
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.30
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.01
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.02
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.04
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.42
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.18
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.20
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.42
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.18
CY2020Q2	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	1700000	USD
CY2021Q3	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	11900000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	20427000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	18326000	USD
CY2021Q3	powl	Deferred Tax Liabilities Gross And Valuation Allowance DeferredTaxLiabilitiesGrossAndValuationAllowance	15788000	USD
CY2020Q3	powl	Deferred Tax Liabilities Gross And Valuation Allowance DeferredTaxLiabilitiesGrossAndValuationAllowance	14682000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	4639000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3644000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12682000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	10823000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1598000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1490000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	2095000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	1681000	USD
CY2021Q3	powl	Deferred Tax Assets Uniform Capitalization And Inventory DeferredTaxAssetsUniformCapitalizationAndInventory	1222000	USD
CY2020Q3	powl	Deferred Tax Assets Uniform Capitalization And Inventory DeferredTaxAssetsUniformCapitalizationAndInventory	1067000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	921000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1079000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	718000	USD
CY2020Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5655000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10498000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	929000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	579000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	655000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	130000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	112000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	156000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	111000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	326000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	379000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	20427000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	18326000	USD
CY2021Q3	powl	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	4404000	USD
CY2020Q3	powl	Deferred Tax Liabilities Depreciation And Amortization DeferredTaxLiabilitiesDepreciationAndAmortization	5035000	USD
CY2021Q3	powl	Deferred Tax Liabilities Retention And Other DeferredTaxLiabilitiesRetentionAndOther	886000	USD
CY2020Q3	powl	Deferred Tax Liabilities Retention And Other DeferredTaxLiabilitiesRetentionAndOther	620000	USD
CY2021Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5290000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	9027000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	4639000	USD
CY2020Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3644000	USD
CY2021Q3	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	100000	USD
CY2021Q3	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	10500000	USD
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	1500000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1252000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2703000	USD
CY2018Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1854000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	251000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	220000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	240000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	75000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	97000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	609000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	545000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	169000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	1223000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1409000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	1252000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2703000	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1100000	USD
CY2020Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	800000	USD
CY2019Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2100000	USD
CY2021Q3	us-gaap	Decrease In Unrecognized Tax Benefits Is Reasonably Possible DecreaseInUnrecognizedTaxBenefitsIsReasonablyPossible	300000	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	2900000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3100000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	3200000	USD
CY2021	powl	Deferred Compensation Arrangement With Individual Age Of Individual DeferredCompensationArrangementWithIndividualAgeOfIndividual	P65Y
CY2021	us-gaap	Deferred Compensation Arrangement With Individual Requisite Service Period1 DeferredCompensationArrangementWithIndividualRequisiteServicePeriod1	P10Y
CY2021Q3	us-gaap	Deferred Compensation Arrangement With Individual Recorded Liability DeferredCompensationArrangementWithIndividualRecordedLiability	100000	USD
CY2021Q3	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	3300000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	2435000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	2389000	USD
CY2021	us-gaap	Sublease Income SubleaseIncome	706000	USD
CY2020	us-gaap	Sublease Income SubleaseIncome	555000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	443000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	351000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1281000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	677000	USD
CY2021	us-gaap	Lease Cost LeaseCost	3453000	USD
CY2020	us-gaap	Lease Cost LeaseCost	2862000	USD
CY2019	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	3500000	USD
CY2019	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	1300000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	3453000	USD
CY2020Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	5217000	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1415000	USD
CY2020Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2352000	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	2413000	USD
CY2020Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	3434000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	3828000	USD
CY2020Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	5786000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	2351000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1448000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	164000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	0	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	0	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	0	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	3963000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	135000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	3828000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0404
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y9M
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segments
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	470559000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	518499000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	517180000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	109457000	USD
CY2020Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	114372000	USD
CY2020Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	106575000	USD
CY2021Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	118716000	USD
CY2021Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	115813000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	129455000	USD
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	470559000	USD
CY2020Q4	us-gaap	Gross Profit GrossProfit	18271000	USD
CY2021Q1	us-gaap	Gross Profit GrossProfit	17153000	USD
CY2021Q2	us-gaap	Gross Profit GrossProfit	17167000	USD
CY2021Q3	us-gaap	Gross Profit GrossProfit	22472000	USD
CY2021	us-gaap	Gross Profit GrossProfit	75063000	USD
CY2020Q4	us-gaap	Net Income Loss NetIncomeLoss	-364000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	-225000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-2041000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	3261000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	631000	USD
CY2020Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.03
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.02
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.17
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.28
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.05
CY2020Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.03
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.02
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.17
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.28
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.05
CY2019Q4	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	134150000	USD
CY2020Q1	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	151570000	USD
CY2020Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	118062000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	114717000	USD
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	518499000	USD
CY2019Q4	us-gaap	Gross Profit GrossProfit	21826000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	29685000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	21344000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	21720000	USD
CY2020	us-gaap	Gross Profit GrossProfit	94575000	USD
CY2019Q4	us-gaap	Net Income Loss NetIncomeLoss	2775000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	7421000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	3481000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	2983000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	16660000	USD
CY2019Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.64
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.30
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.26
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.43
CY2019Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.64
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.30
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.25
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.42
CY2020Q2	us-gaap	Restructuring Charges RestructuringCharges	1400000	USD
CY2020Q3	powl	Gain Loss On Cash Surrender Value Of Life Insurance GainLossOnCashSurrenderValueOfLifeInsurance	500000	USD

Files In Submission

Name	View Source	Status
0000080420-21-000045-index-headers.html	Edgar Link	pending
0000080420-21-000045-index.html	Edgar Link	pending
0000080420-21-000045.txt	Edgar Link	pending
0000080420-21-000045-xbrl.zip	Edgar Link	pending
exhibit21110k2021.htm	Edgar Link	pending
exhibit23110k2021.htm	Edgar Link	pending
exhibit31110k2021.htm	Edgar Link	pending
exhibit31210k2021.htm	Edgar Link	pending
exhibit32110k2021.htm	Edgar Link	pending
exhibit32210k2021.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
powl-20210930.htm	Edgar Link	pending
powl-20210930.xsd	Edgar Link	pending
powl-20210930_cal.xml	Edgar Link	unprocessable
powl-20210930_def.xml	Edgar Link	unprocessable
powl-20210930_g1.jpg	Edgar Link	pending
powl-20210930_htm.xml	Edgar Link	completed
powl-20210930_lab.xml	Edgar Link	unprocessable
powl-20210930_pre.xml	Edgar Link	unprocessable
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$POWL
POWELL INDUSTRIES INC Stock $powl

2021 Q3 Form 10-K Financial Statement

#000008042021000045 Filed on December 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$POWL POWELL INDUSTRIES INC Stock $powl

2021 Q3 Form 10-K Financial Statement

#000008042021000045 Filed on December 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$POWL
POWELL INDUSTRIES INC Stock $powl