$CLFD
Clearfield, Inc. Stock $clfd

$clfd Overview Financials Valuation SEC Filings Company Website

2024 Q4 Form 10-K Financial Statement

#000117184324006402 Filed on November 15, 2024

Income Statement

Concept	2024 Q4	2024 Q3	2024
Revenue		$46.77M	$166.7M
YoY Change		-5.86%	-37.96%
Cost Of Revenue		$36.10M	$137.8M
YoY Change		-4.21%	-24.87%
Gross Profit		$10.67M	$28.89M
YoY Change		-11.06%	-66.12%
Gross Profit Margin		22.81%	17.33%
Selling, General & Admin		$13.68M	$52.11M
YoY Change		33.11%	8.58%
% of Gross Profit		128.24%	180.38%
Research & Development			$3.000M
YoY Change			-3.69%
% of Gross Profit			10.38%
Depreciation & Amortization		$1.930M	$7.411M
YoY Change		17.4%	22.41%
% of Gross Profit		18.09%	25.65%
Operating Expenses		$13.68M	$55.11M
YoY Change		33.11%	7.83%
Operating Profit		-$3.013M	-$23.22M
YoY Change		-275.58%	-162.28%
Interest Expense		$1.694M	$506.0K
YoY Change		9.43%	-42.57%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income		-$1.319M	-$16.26M
YoY Change		-140.41%	-139.07%
Income Tax		-$492.0K	-$3.803M
% Of Pretax Income
Net Earnings		-$827.0K	-$12.45M
YoY Change		-130.68%	-138.28%
Net Earnings / Revenue		-1.77%	-7.47%
Basic Earnings Per Share			-$0.85
Diluted Earnings Per Share		-$0.06	-$0.85
COMMON SHARES
Basic Shares Outstanding	14.29M	14.24M	14.58M
Diluted Shares Outstanding			14.58M

Balance Sheet

Concept	2024 Q3	2024
SHORT-TERM ASSETS
Cash & Short-Term Investments	$131.0M	$131.0M
YoY Change	-22.08%	-22.08%
Cash & Equivalents	$16.17M	$16.17M
Short-Term Investments	$114.8M	$114.8M
Other Short-Term Assets	$10.53M	$10.53M
YoY Change	521.12%	521.12%
Inventory	$66.77M	$66.77M
Prepaid Expenses
Receivables	$21.31M	$21.31M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$229.6M	$229.6M
YoY Change	-22.5%	-22.5%
LONG-TERM ASSETS
Property, Plant & Equipment	$23.95M	$39.75M
YoY Change	11.27%	12.33%
Goodwill	$6.627M
YoY Change	1.52%
Intangibles	$6.343M
YoY Change	4.12%
Long-Term Investments	$24.51M	$24.51M
YoY Change	286.33%	286.33%
Other Assets	$2.320M	$8.455M
YoY Change	23.93%	72.16%
Total Long-Term Assets	$85.68M	$85.68M
YoY Change	44.58%	44.58%
TOTAL ASSETS
Total Short-Term Assets	$229.6M	$229.6M
Total Long-Term Assets	$85.68M	$85.68M
Total Assets	$315.3M	$315.3M
YoY Change	-11.32%	-11.32%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$6.720M	$6.720M
YoY Change	-24.42%	-24.42%
Accrued Expenses	$4.378M	$14.71M
YoY Change	82.11%	25.61%
Deferred Revenue
YoY Change
Short-Term Debt	$2.920M	$2.920M
YoY Change	-53.57%	-53.57%
Long-Term Debt Due	$0.00	$0.00
YoY Change	-100.0%	-100.0%
Total Short-Term Liabilities	$24.35M	$24.35M
YoY Change	-16.04%	-16.04%
LONG-TERM LIABILITIES
Long-Term Debt	$2.228M	$2.228M
YoY Change
Other Long-Term Liabilities	$12.77M	$12.77M
YoY Change	20.15%	20.15%
Total Long-Term Liabilities	$15.00M	$15.00M
YoY Change	41.11%	41.11%
TOTAL LIABILITIES
Total Short-Term Liabilities	$24.35M	$24.35M
Total Long-Term Liabilities	$15.00M	$15.00M
Total Liabilities	$39.51M	$39.51M
YoY Change	-2.09%	-2.09%
SHAREHOLDERS EQUITY
Retained Earnings	$115.0M
YoY Change	-9.72%
Common Stock	$142.0K
YoY Change	-7.19%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$275.8M	$275.8M
YoY Change
Total Liabilities & Shareholders Equity	$315.3M	$315.3M
YoY Change	-11.32%	-11.32%

Cashflow Statement

Concept	2024 Q3	2024
OPERATING ACTIVITIES
Net Income	-$827.0K	-$12.45M
YoY Change	-130.68%	-138.28%
Depreciation, Depletion And Amortization	$1.930M	$7.411M
YoY Change	17.4%	22.41%
Cash From Operating Activities	$13.76M	$22.22M
YoY Change	110.7%	11.06%
INVESTING ACTIVITIES
Capital Expenditures	$3.959M	$9.567M
YoY Change	113.54%	24.51%
Acquisitions		$0.00
YoY Change
Other Investing Activities	-$15.26M	$2.671M
YoY Change	-867.94%	-102.57%
Cash From Investing Activities	-$19.22M	-$6.896M
YoY Change	-14549.62%	-93.86%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$33.37M
YoY Change		-74.38%
Debt Paid & Issued, Net		$2.171M
YoY Change
Cash From Financing Activities	-3.869M	-$36.91M
YoY Change	1365.53%	-132.54%
NET CHANGE
Cash From Operating Activities	13.76M	$22.22M
Cash From Investing Activities	-19.22M	-$6.896M
Cash From Financing Activities	-3.869M	-$36.91M
Net Change In Cash	-9.328M	-$21.66M
YoY Change	-245.77%	-202.28%
FREE CASH FLOW
Cash From Operating Activities	$13.76M	$22.22M
Capital Expenditures	$3.959M	$9.567M
Free Cash Flow	$9.800M	$12.66M
YoY Change	109.58%	2.68%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2024	dei	Document Period End Date DocumentPeriodEndDate	2024-09-30
CY2024	dei	Document Transition Report DocumentTransitionReport	false
CY2024	dei	Entity File Number EntityFileNumber	0-16106
CY2024	dei	Entity Registrant Name EntityRegistrantName	CLEARFIELD, INC.
CY2024	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MN
CY2024	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	41-1347235
CY2024	dei	Entity Address Address Line1 EntityAddressAddressLine1	7050 Winnetka Avenue North
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CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	5206000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	328000	usd
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CY2024	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2024	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
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CY2024	dei	Document Annual Report DocumentAnnualReport	true
CY2024	dei	Entity Address City Or Town EntityAddressCityOrTown	Brooklyn Park
CY2024	dei	Entity Address State Or Province EntityAddressStateOrProvince	MN
CY2024	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	55428
CY2024	dei	City Area Code CityAreaCode	763
CY2024	dei	Local Phone Number LocalPhoneNumber	476-6866
CY2024	dei	Security12b Title Security12bTitle	Common Stock, $0.01 par value
CY2024	dei	Trading Symbol TradingSymbol	CLFD
CY2024	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2024	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2024	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2024	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2024	dei	Auditor Firm AuditorFirmId	23
CY2024	dei	Auditor Name AuditorName	Baker Tilly, US, LLP
CY2024	dei	Auditor Location AuditorLocation	Minneapolis, Minnesota
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CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.58
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.85
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.17
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.55
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14582450
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14975972
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13771665
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14582450
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15012527
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13905984
CY2024	us-gaap	Net Income Loss NetIncomeLoss	-12453000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	32533000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	49362000	usd
CY2024	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	748000	usd
CY2023	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	542000	usd
CY2022	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1590000	usd
CY2024	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent	875000	usd
CY2023	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent	812000	usd
CY2022	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentBeforeTaxPortionAttributableToParent	-308000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1623000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1354000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1898000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-10830000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	33887000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	47464000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	315163000	usd
CY2024	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4641000	usd
CY2024	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2024	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	586000	usd
CY2024	clfd	Stock Issued During Period Value Withholding Related To Stock Options Exercised StockIssuedDuringPeriodValueWithholdingRelatedToStockOptionsExercised	-9000	usd
CY2024	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	493000	usd
CY2024	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	33374000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1623000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	-12453000	usd
CY2024Q3	us-gaap	Stockholders Equity StockholdersEquity	275763000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	147582000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	3578000	usd
CY2023	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	954000	usd
CY2023	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	611000	usd
CY2023	clfd	Stock Issued During Period Value Withholding Related To Stock Options Exercised StockIssuedDuringPeriodValueWithholdingRelatedToStockOptionsExercised	-491000	usd
CY2023	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1220000	usd
CY2023	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	130262000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	1354000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	32533000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	315163000	usd
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	103824000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	2339000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	0	usd
CY2022	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	544000	usd
CY2022	clfd	Stock Issued During Period Value Withholding Related To Stock Options Exercised StockIssuedDuringPeriodValueWithholdingRelatedToStockOptionsExercised	-5183000	usd
CY2022	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1406000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-1898000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	49362000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	147582000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	-12453000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	32533000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	49362000	usd
CY2024	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7411000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6054000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	3426000	usd
CY2024	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	4406000	usd
CY2023	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	3512000	usd
CY2022	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	42000	usd
CY2024	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-4078000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-2114000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-326000	usd
CY2024	us-gaap	Share Based Compensation ShareBasedCompensation	4641000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	3578000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	2339000	usd
CY2024	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-7799000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-26277000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	24234000	usd
CY2024	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-31990000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	15083000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	43744000	usd
CY2024	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9225000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1466000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	282000	usd
CY2024	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	544000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-27843000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	15759000	usd
CY2024	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	22223000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	18424000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2258000	usd
CY2024	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	9567000	usd
CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	8384000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	9148000	usd
CY2024	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	159393000	usd
CY2023	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	210923000	usd
CY2022	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	248000	usd
CY2024	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	162064000	usd
CY2023	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	107060000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	17386000	usd
CY2024	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-0	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-0	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	16187000	usd
CY2024	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-6896000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-112247000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-8197000	usd
CY2024	clfd	Proceeds From Issuance Repayment Of Longterm Debt ProceedsFromIssuanceRepaymentOfLongtermDebt	2171000	usd
CY2023	clfd	Proceeds From Issuance Repayment Of Longterm Debt ProceedsFromIssuanceRepaymentOfLongtermDebt	-16700000	usd
CY2022	clfd	Proceeds From Issuance Repayment Of Longterm Debt ProceedsFromIssuanceRepaymentOfLongtermDebt	16700000	usd
CY2024	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	2171000	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	-0	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	-0	usd
CY2024	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	586000	usd
CY2023	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	611000	usd
CY2022	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	544000	usd
CY2024	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	493000	usd
CY2023	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1220000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1406000	usd
CY2024	clfd	Payments For Proceeds From Tax Withholding Stock Options Exercised PaymentsForProceedsFromTaxWithholdingStockOptionsExercised	9000	usd
CY2023	clfd	Payments For Proceeds From Tax Withholding Stock Options Exercised PaymentsForProceedsFromTaxWithholdingStockOptionsExercised	491000	usd
CY2022	clfd	Payments For Proceeds From Tax Withholding Stock Options Exercised PaymentsForProceedsFromTaxWithholdingStockOptionsExercised	5183000	usd
CY2024	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	1000	usd
CY2023	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	954000	usd
CY2022	us-gaap	Proceeds From Issuance Of Shares Under Incentive And Share Based Compensation Plans ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans	0	usd
CY2024	clfd	Proceeds From Repayment Of Factoring Liability ProceedsFromRepaymentOfFactoringLiability	-3617000	usd
CY2023	clfd	Proceeds From Repayment Of Factoring Liability ProceedsFromRepaymentOfFactoringLiability	1586000	usd
CY2022	clfd	Proceeds From Repayment Of Factoring Liability ProceedsFromRepaymentOfFactoringLiability	-1258000	usd
CY2024	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	130262000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2024	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	33374000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	-0	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	-0	usd
CY2024	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-36906000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	115002000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	9397000	usd
CY2024	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-81000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-2000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-24000	usd
CY2024	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-21660000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	21177000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	3434000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	37827000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	16650000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	13216000	usd
CY2024Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	16167000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	37827000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	16650000	usd
CY2024	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	159000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	12967000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	13744000	usd
CY2024	us-gaap	Interest Paid Net InterestPaidNet	394000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	463000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	119000	usd
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	4731000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	3776000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12016000	usd
CY2024	clfd	Issuance Of Common Stock Funded Through Shares Sold To Company IssuanceOfCommonStockFundedThroughSharesSoldToCompany	19000	usd
CY2023	clfd	Issuance Of Common Stock Funded Through Shares Sold To Company IssuanceOfCommonStockFundedThroughSharesSoldToCompany	566000	usd
CY2022	clfd	Issuance Of Common Stock Funded Through Shares Sold To Company IssuanceOfCommonStockFundedThroughSharesSoldToCompany	1624000	usd
CY2024Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16167000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	37827000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	79000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	79000	usd
CY2024Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	56842000	usd
CY2023Q3	us-gaap	Inventory Raw Materials InventoryRawMaterials	73657000	usd
CY2024Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	1790000	usd
CY2023Q3	us-gaap	Inventory Work In Process InventoryWorkInProcess	1462000	usd
CY2024Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	23389000	usd
CY2023Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	29696000	usd
CY2024Q3	us-gaap	Inventory Gross InventoryGross	82021000	usd
CY2023Q3	us-gaap	Inventory Gross InventoryGross	104815000	usd
CY2024Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	15255000	usd
CY2023Q3	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	6760000	usd
CY2024Q3	us-gaap	Inventory Net InventoryNet	66766000	usd
CY2023Q3	us-gaap	Inventory Net InventoryNet	98055000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	44934000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	37140000	usd
CY2024Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	20981000	usd
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	15613000	usd
CY2024Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23953000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	21527000	usd
CY2024	us-gaap	Depreciation Depreciation	5815000	usd
CY2023	us-gaap	Depreciation Depreciation	4915000	usd
CY2022	us-gaap	Depreciation Depreciation	2647000	usd
CY2024Q3	clfd	Number Of Patents Granted NumberOfPatentsGranted	53	pure
CY2023Q4	us-gaap	Goodwill Goodwill	6528000	usd
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	99000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	6627000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	6402000	usd
	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	126000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	6528000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	12173000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	5830000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6343000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	10860000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4768000	usd
CY2023Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6092000	usd
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1567000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1128000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	766000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	1480000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	763000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	551000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	463000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	444000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2642000	usd
CY2024Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6343000	usd
CY2024Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000
CY2024	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3000000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3115000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	895000	usd
CY2024	us-gaap	Advertising Expense AdvertisingExpense	535000	usd
CY2023	us-gaap	Advertising Expense AdvertisingExpense	609000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	537000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	-12453000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	32533000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	49362000	usd
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14582450
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14975972
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13771665
CY2024	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	0
CY2023	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	36555
CY2022	us-gaap	Incremental Common Shares Attributable To Contingently Issuable Shares IncrementalCommonSharesAttributableToContingentlyIssuableShares	134319
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14582450
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15012527
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13905984
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.85
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.17
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.58
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.85
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.17
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.55
CY2024	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:Times New Roman;font-size:10pt;font-variant:normal;text-align:justify;margin:0pt;"><b>Use of Estimates: </b>The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, related revenues and expenses and disclosure about contingent assets and liabilities at the date of the financial statements. Significant estimates include the rebates related to revenue recognition, stock-based compensation and the valuation of inventory, long-lived assets, finite lived intangible assets and goodwill. Actual results may differ materially from these estimates.</p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"> </p>
CY2024	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; text-align: justify; margin: 0pt;"><b>Reclassification:</b> The Company has revised the prior period presentation within its Statement of Cashflows for the fiscal years ended September 30, 2023, and 2022 to reclassify the net borrowings and repayments of factoring receivables from the operating activities section of the statement within the line for changes in operating assets and liabilities titled “Accounts payable and accrued expenses” to its own line as currently presented in the financing activities section. We have reviewed the classification changes and determined they are not material to the financial statements as a whole.</p> <p style="font-family:'Times New Roman';font-size:10pt;font-variant:normal;margin:0pt;"> </p>
CY2024Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	4989000	usd
CY2024	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y1M6D
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4641000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3578000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2339000	usd
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	118706
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	26.84
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	40266
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	64.38
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	62730
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	66.48
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.6166	pure
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.6314	pure
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0455	pure
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0375	pure
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0097	pure
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	90245
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	79911
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	113727
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	25000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1603000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	11279000	usd
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	301514
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	16.25
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	62730
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	66.48
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	25.54
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	125651
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	12.92
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	2084
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	19.94
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	236509
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	31.3
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	40266
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	64.38
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	30.83
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	21630
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	26.16
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	1021
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	18.18
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	254124
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	37.04
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	118706
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	26.84
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	12.96
CY2024	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1501
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	12.4
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	4345
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	38.13
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	366984
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	33.83
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	181455
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y6M
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	32.65
CY2024Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	5924000	usd
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	97056
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y3M10D
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	28.13
CY2023Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	2731000	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	39276
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y9M10D
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	20.26
CY2022Q3	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	3314000	usd
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	366984
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y6M3D
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	33.83
CY2024Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	12414000	usd
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	254124
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y8M19D
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	37.04
CY2023Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	9413000	usd
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	236509
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y2M19D
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	31.3
CY2022Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	17343000	usd
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	1796000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	3141000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue	3744000	usd
CY2024	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	15879
CY2024	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	31.05
CY2023	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	12862
CY2023	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	62.2
CY2022	us-gaap	Stock Repurchased During Period Shares StockRepurchasedDuringPeriodShares	13292
CY2022	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	105.78
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	19719000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	39000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	6736000	usd
CY2024Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	262000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	113153000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	131000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	23476000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	755000	usd
CY2023Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	42	pure
CY2024Q3	clfd	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	10378000	usd
CY2024Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	139330000	usd
CY2023Q3	clfd	Cash Equivalents Fair Value Disclosure CashEquivalentsFairValueDisclosure	26467000	usd
CY2023Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	136629000	usd
CY2024	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	385000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	9449000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	13230000	usd
CY2024	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-114000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1435000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1532000	usd
CY2024	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	144000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	48000	usd
CY2024	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	275000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	11028000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	14810000	usd
CY2024	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3092000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1751000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-509000	usd
CY2024	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-427000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-251000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	6000	usd
CY2024	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-559000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	53000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	165000	usd
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4078000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1949000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-334000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3803000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9079000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14472000	usd
CY2024	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.039	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.021	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.015	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.001	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.004	pure
CY2024	clfd	Effective Income Tax Rate Reconciliation Permanent Differences Percent EffectiveIncomeTaxRateReconciliationPermanentDifferencesPercent	0	pure
CY2022	clfd	Effective Income Tax Rate Reconciliation Permanent Differences Percent EffectiveIncomeTaxRateReconciliationPermanentDifferencesPercent	0.008	pure
CY2021	clfd	Effective Income Tax Rate Reconciliation Permanent Differences Percent EffectiveIncomeTaxRateReconciliationPermanentDifferencesPercent	0.046	pure
CY2024	clfd	Effective Income Tax Rate Reconciliation Tax Credit Research And Development Percent EffectiveIncomeTaxRateReconciliationTaxCreditResearchAndDevelopmentPercent	0.008	pure
CY2022	clfd	Effective Income Tax Rate Reconciliation Tax Credit Research And Development Percent EffectiveIncomeTaxRateReconciliationTaxCreditResearchAndDevelopmentPercent	-0.01	pure
CY2021	clfd	Effective Income Tax Rate Reconciliation Tax Credit Research And Development Percent EffectiveIncomeTaxRateReconciliationTaxCreditResearchAndDevelopmentPercent	-0.005	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.008	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.017	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.049	pure
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.234	pure
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.218	pure
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.227	pure
CY2024Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	4241000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Inventory DeferredTaxAssetsInventory	2154000	usd
CY2024Q3	clfd	Deferred Tax Assets Capitalized Research And Development DeferredTaxAssetsCapitalizedResearchAndDevelopment	1328000	usd
CY2023Q3	clfd	Deferred Tax Assets Capitalized Research And Development DeferredTaxAssetsCapitalizedResearchAndDevelopment	832000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	1042000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	600000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	427000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals	515000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	683000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	726000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	201000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Unrealized Currency Losses DeferredTaxAssetsUnrealizedCurrencyLosses	0	usd
CY2023Q3	us-gaap	Deferred Tax Assets Unrealized Currency Losses DeferredTaxAssetsUnrealizedCurrencyLosses	0	usd
CY2024Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	7768000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	3619000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	1146000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	1123000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	16000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	204000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	141000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	193000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	254000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	153000	usd
CY2024Q3	us-gaap	Deferred Tax Liabilities Unrealized Currency Transaction Gains DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains	238000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Unrealized Currency Transaction Gains DeferredTaxLiabilitiesUnrealizedCurrencyTransactionGains	36000	usd
CY2024Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1795000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1301000	usd
CY2024Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	5973000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	2318000	usd
CY2024	clfd	Revenues Percent RevenuesPercent	1	pure
CY2023	clfd	Revenues Percent RevenuesPercent	1	pure
CY2022	clfd	Revenues Percent RevenuesPercent	1	pure
CY2024	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1087000	usd
CY2023	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1017000	usd
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1129000	usd
CY2024	us-gaap	Operating Lease Expense OperatingLeaseExpense	4554000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	4311000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	2801000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	4321000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4382000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	3451000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	2867000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1566000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	2576000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	19163000	usd
CY2024Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	3035000	usd
CY2024Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	16128000	usd
CY2024Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y2M12D
CY2024Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0659	pure
CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y1M28D
CY2023Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0359	pure
CY2022Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y14D
CY2022Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0322	pure
CY2024	us-gaap	Operating Lease Payments OperatingLeasePayments	4222000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	3954000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	2064000	usd
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	166705000	usd
CY2024	us-gaap	Revenue Not From Contract With Customer Excluding Interest Income RevenueNotFromContractWithCustomerExcludingInterestIncome	0	usd
CY2024	us-gaap	Net Investment Income NetInvestmentIncome	7472000	usd
CY2024	us-gaap	Interest Expense InterestExpense	506000	usd
CY2024	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	7411000	usd
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4641000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3803000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	-12453000	usd
CY2024	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9567000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	268720000	usd
CY2023	us-gaap	Revenue Not From Contract With Customer Excluding Interest Income RevenueNotFromContractWithCustomerExcludingInterestIncome	0	usd
CY2023	us-gaap	Net Investment Income NetInvestmentIncome	5206000	usd
CY2023	us-gaap	Interest Expense InterestExpense	881000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6054000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3578000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	9079000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	32533000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7684000	usd
CY2024Q3	us-gaap	Goodwill Goodwill	6627000	usd
CY2024Q3	us-gaap	Assets Assets	315275000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	6528000	usd
CY2023Q3	us-gaap	Assets Assets	355517000	usd
CY2024Q3	clfd	Factoring Liabilities FactoringLiabilities	2920000	usd
CY2023Q3	clfd	Factoring Liabilities FactoringLiabilities	6289000	usd
CY2022Q3	clfd	Factoring Liabilities FactoringLiabilities	4391000	usd
CY2024Q3	clfd	Financing Receivables Percentage Of Cash Initially Received FinancingReceivablesPercentageOfCashInitiallyReceived	0.80	pure
CY2024Q3	clfd	Financing Receivable Percentage Of Balance Received When Invoice Is Paid FinancingReceivablePercentageOfBalanceReceivedWhenInvoiceIsPaid	0.20	pure
CY2024Q3	clfd	Financing Receivable Limit FinancingReceivableLimit	12500000	eur
CY2024Q3	clfd	Financing Receivable Limit FinancingReceivableLimit	13900000	usd
CY2024	clfd	Financing Receivable Average Interest Rate During Period FinancingReceivableAverageInterestRateDuringPeriod	0.0512	pure
CY2023	clfd	Financing Receivable Average Interest Rate During Period FinancingReceivableAverageInterestRateDuringPeriod	0.0389	pure
CY2022	clfd	Financing Receivable Average Interest Rate During Period FinancingReceivableAverageInterestRateDuringPeriod	0.0214	pure

Files In Submission

Name	View Source	Status
0001171843-24-006402-index-headers.html	Edgar Link	pending
0001171843-24-006402-index.html	Edgar Link	pending
0001171843-24-006402.txt	Edgar Link	pending
0001171843-24-006402-xbrl.zip	Edgar Link	pending
clfd-20240930.xsd	Edgar Link	pending
clfd20240930_10k.htm	Edgar Link	pending
exh19logo.jpg	Edgar Link	pending
ex_745471.htm	Edgar Link	pending
ex_745472.htm	Edgar Link	pending
ex_745473.htm	Edgar Link	pending
clfd-20240930_cal.xml	Edgar Link	unprocessable
clfd-20240930_lab.xml	Edgar Link	unprocessable
clfd-20240930_def.xml	Edgar Link	unprocessable
clfd-20240930_pre.xml	Edgar Link	unprocessable
clfd20240930_10k_htm.xml	Edgar Link	completed
ex_745474.htm	Edgar Link	pending
ex_745475.htm	Edgar Link	pending
ex_748018.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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
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R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
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R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
return5yr.jpg	Edgar Link	pending
Show.js	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable

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$CLFD
Clearfield, Inc. Stock $clfd

2024 Q4 Form 10-K Financial Statement

#000117184324006402 Filed on November 15, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLFD Clearfield, Inc. Stock $clfd

2024 Q4 Form 10-K Financial Statement

#000117184324006402 Filed on November 15, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CLFD
Clearfield, Inc. Stock $clfd