$FTEK
FUEL TECH, INC. Stock $ftek

$ftek Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000143774923005675 Filed on March 07, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$7.287M	$7.021M	$26.94M
YoY Change	31.65%	8.84%	11.05%
Cost Of Revenue	$4.482M	$4.018M	$15.30M
YoY Change	38.12%	25.05%	23.74%
Gross Profit	$2.805M	$3.003M	$11.64M
YoY Change	22.49%	-7.26%	-2.14%
Gross Profit Margin	38.49%	42.77%	43.22%
Selling, General & Admin	$3.245M	$3.074M	$12.28M
YoY Change	6.25%	-3.85%	1.82%
% of Gross Profit	115.69%	102.36%	105.43%
Research & Development	$218.0K	$179.0K	$895.0K
YoY Change	-0.91%	-31.68%	-32.81%
% of Gross Profit	7.77%	5.96%	7.69%
Depreciation & Amortization	$79.00K	$103.0K	$352.0K
YoY Change	-15.96%	-39.41%	-39.73%
% of Gross Profit	2.82%	3.43%	3.02%
Operating Expenses	$3.463M	$3.253M	$13.17M
YoY Change	5.77%	-5.96%	-1.62%
Operating Profit	-$658.0K	-$250.0K	-$1.527M
YoY Change	-33.13%	13.12%	2.55%
Interest Expense	$5.000K	$97.00K	$17.00K
YoY Change	0.0%	-3333.33%	30.77%
% of Operating Profit
Other Income/Expense, Net	-$90.00K	-$204.0K	-$46.00K
YoY Change	800.0%	3300.0%	-102.93%
Pretax Income	-$414.0K	-$357.0K	-$1.388M
YoY Change	-58.52%	48.75%	-2141.18%
Income Tax	$0.00	$45.00K	$54.00K
% Of Pretax Income
Net Earnings	-$414.0K	-$402.0K	-$1.442M
YoY Change	-58.52%	64.75%	-2770.37%
Net Earnings / Revenue	-5.68%	-5.73%	-5.35%
Basic Earnings Per Share	-$0.01		-$0.05
Diluted Earnings Per Share	-$0.01	-$0.01	-$0.05
COMMON SHARES
Basic Shares Outstanding	30.30M	30.30M	30.29M
Diluted Shares Outstanding	30.30M		30.29M

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$26.77M	$26.31M	$26.31M
YoY Change	-21.68%	-26.7%	-26.7%
Cash & Equivalents	$15.70M	$23.33M	$23.33M
Short-Term Investments	$11.07M	$2.981M	$2.981M
Other Short-Term Assets	$1.350M	$1.395M	$1.395M
YoY Change	-36.5%	-29.01%	-29.01%
Inventory	$509.0K	$392.0K	$392.0K
Prepaid Expenses
Receivables	$6.755M	$7.729M	$7.729M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$35.38M	$35.83M	$35.83M
YoY Change	-14.66%	-13.6%	-13.6%
LONG-TERM ASSETS
Property, Plant & Equipment	$4.370M	$4.435M	$4.632M
YoY Change	-4.04%	-3.78%	-4.51%
Goodwill	$2.116M	$2.116M
YoY Change	0.0%	0.0%
Intangibles	$401.0K	$397.0K
YoY Change	-10.49%	-11.38%
Long-Term Investments	$7.054M	$6.360M	$6.360M
YoY Change
Other Assets	$796.0K	$794.0K	$794.0K
YoY Change	-4.9%	-3.64%	-27.42%
Total Long-Term Assets	$14.90M	$14.30M	$14.30M
YoY Change	82.52%	68.05%	68.05%
TOTAL ASSETS
Total Short-Term Assets	$35.38M	$35.83M	$35.83M
Total Long-Term Assets	$14.90M	$14.30M	$14.30M
Total Assets	$50.28M	$50.12M	$50.12M
YoY Change	1.33%	0.3%	0.3%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$3.651M	$2.710M	$2.710M
YoY Change	62.99%	73.61%	73.61%
Accrued Expenses	$1.097M	$1.684M	$1.684M
YoY Change	-10.08%	32.39%	32.39%
Deferred Revenue	$427.0K	$372.0K
YoY Change	-18.2%	-4.62%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$5.175M	$4.766M	$4.766M
YoY Change	29.96%	47.87%	47.87%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$277.0K	$274.0K	$340.0K
YoY Change	2.97%	-5.52%	-17.48%
Total Long-Term Liabilities	$277.0K	$274.0K	$340.0K
YoY Change	2.97%	-5.52%	-17.48%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.175M	$4.766M	$4.766M
Total Long-Term Liabilities	$277.0K	$274.0K	$340.0K
Total Liabilities	$5.680M	$5.283M	$5.283M
YoY Change	26.56%	39.98%	39.98%
SHAREHOLDERS EQUITY
Retained Earnings	-$116.4M	-$116.0M
YoY Change	0.74%	1.26%
Common Stock	$164.8M	$164.7M
YoY Change	0.18%	0.14%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$2.251M
YoY Change		0.76%
Treasury Stock Shares		$976.0K
Shareholders Equity	$44.60M	$44.84M	$44.84M
YoY Change
Total Liabilities & Shareholders Equity	$50.28M	$50.12M	$50.12M
YoY Change	1.33%	0.3%	0.3%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	-$414.0K	-$402.0K	-$1.442M
YoY Change	-58.52%	64.75%	-2770.37%
Depreciation, Depletion And Amortization	$79.00K	$103.0K	$352.0K
YoY Change	-15.96%	-39.41%	-39.73%
Cash From Operating Activities	$1.010M	-$1.548M	-$4.139M
YoY Change	-157.85%	-919.05%	-643.89%
INVESTING ACTIVITIES
Capital Expenditures	$30.00K	$20.00K	$206.0K
YoY Change	-156.6%	-96.0%	-345.24%
Acquisitions
YoY Change
Other Investing Activities	-$8.685M	$500.0K	-$9.277M
YoY Change
Cash From Investing Activities	-$8.715M	$480.0K	-$9.483M
YoY Change	16343.4%	-4.0%	11189.29%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$0.00	0.000	-$17.00K
YoY Change	-100.0%		-100.07%
NET CHANGE
Cash From Operating Activities	$1.010M	-1.548M	-$4.139M
Cash From Investing Activities	-$8.715M	480.0K	-$9.483M
Cash From Financing Activities	$0.00	0.000	-$17.00K
Net Change In Cash	-$7.630M	-1.068M	-$13.73M
YoY Change	320.62%	-255.01%	-156.14%
FREE CASH FLOW
Cash From Operating Activities	$1.010M	-$1.548M	-$4.139M
Capital Expenditures	$30.00K	$20.00K	$206.0K
Free Cash Flow	$980.0K	-$1.568M	-$4.345M
YoY Change	-157.89%	404.18%	-614.2%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	40000000
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	40000000
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	31272303
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	31227300
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30296297
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30263791
CY2022	us-gaap	Number Of Reporting Units NumberOfReportingUnits	2	pure
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021Q4	ftek	Contract With Customer Contracts In Progress Number Of Contracts Identified As Loss Contracts ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts	0	pure
CY2021	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	usd
CY2021	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	0	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	159000	usd
CY2022Q4	ftek	Additional Number Of Leases AdditionalNumberOfLeases	3	pure
CY2021	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-33059
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	20-5657551
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	27601 Bella Vista Parkway
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Warrenville
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	IL
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	60555-1617
CY2022	dei	City Area Code CityAreaCode	630
CY2022	dei	Local Phone Number LocalPhoneNumber	845-4500
CY2022	dei	Security12b Title Security12bTitle	Common Stock
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CY2022	dei	Trading Symbol TradingSymbol	FTEK
CY2022	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	true
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CY2022	dei	Entity Shell Company EntityShellCompany	false
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CY2022	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	5000	usd
CY2021	us-gaap	Interest And Dividend Income Securities Held To Maturity InterestAndDividendIncomeSecuritiesHeldToMaturity	-0	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-106000	usd
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	usd
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	52000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	46200000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-1442000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-124000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	224000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	0	usd
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	17000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-619000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	38000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	5000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	224000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	82000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4448000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-3794000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	45000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	252000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	314000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-634000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1159000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-772000	usd
CY2022	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	360000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-1404000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-4139000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	761000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	206000	usd
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	84000	usd
CY2022	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	9777000	usd
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	-0	usd
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	500000	usd
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-9483000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-84000	usd
CY2022	us-gaap	Proceeds From Issuance Of Private Placement ProceedsFromIssuanceOfPrivatePlacement	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Private Placement ProceedsFromIssuanceOfPrivatePlacement	25812000	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	-0	usd
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	1783000	usd
CY2022	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	17000	usd
CY2021	us-gaap	Payments For Repurchase Of Equity PaymentsForRepurchaseOfEquity	52000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-17000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	23977000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-87000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-206000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-13726000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	24448000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	37054000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	12606000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	23328000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	37054000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	14000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-51000	usd
CY2021	us-gaap	Incremental Common Shares Attributable To Conversion Of Debt Securities IncrementalCommonSharesAttributableToConversionOfDebtSecurities	0
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0
CY2021Q1	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	1783000	usd
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Use of Estimates</b></p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">The preparation of the financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. The Company uses estimates in accounting for, among other items, revenue recognition, allowance for doubtful accounts, income tax provisions, excess and obsolete inventory reserve, impairment of long-lived assets, and warranty expenses. Actual results could differ from those estimates.</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p>
CY2022Q4	us-gaap	Cash Cash	12560000	usd
CY2021Q4	us-gaap	Cash Cash	35893000	usd
CY2022Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	10768000	usd
CY2021Q4	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	0	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	0	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	891000	usd
CY2022Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	0	usd
CY2021Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	270000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	23328000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	37054000	usd
CY2022Q2	ftek	Investment Plan Maximum Amount Approved InvestmentPlanMaximumAmountApproved	10000000	usd
CY2022Q4	ftek	Investment Plan Maximum Additional Amount Approved InvestmentPlanMaximumAdditionalAmountApproved	10000000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	9341000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	168000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	9173000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	2981000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	2957000	usd
CY2022Q4	ftek	Debt Securities Heldtomaturity Amortized Cost After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year One Through Two DebtSecuritiesHeldtomaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo	4919000	usd
CY2022Q4	ftek	Debt Securities Heldtomaturity Fair Value Maturity Allocated And Single Maturity Date After Year One Through Two DebtSecuritiesHeldtomaturityFairValueMaturityAllocatedAndSingleMaturityDateAfterYearOneThroughTwo	4807000	usd
CY2022Q4	ftek	Debt Securities Heldtomaturity Amortized Cost After Allowance For Credit Loss Maturity Allocated And Single Maturity Date After Year Two Through Three DebtSecuritiesHeldtomaturityAmortizedCostAfterAllowanceForCreditLossMaturityAllocatedAndSingleMaturityDateAfterYearTwoThroughThree	1441000	usd
CY2022Q4	ftek	Debt Securities Heldtomaturity Fair Value Maturity Allocated And Single Maturity Date After Year Two Through Three DebtSecuritiesHeldtomaturityFairValueMaturityAllocatedAndSingleMaturityDateAfterYearTwoThroughThree	1409000	usd
CY2022Q4	us-gaap	Debt Securities Held To Maturity Amortized Cost After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAmortizedCostAfterAllowanceForCreditLoss	9341000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	9173000	usd
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	109000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	30289000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29694000
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	26941000	usd
CY2022Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	3082000	usd
CY2021Q4	us-gaap	Unbilled Contracts Receivable UnbilledContractsReceivable	1277000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	835000	usd
CY2021	ftek	Provision For Doubtful Accounts Including Foreign Impact Of Foreign Exchange ProvisionForDoubtfulAccountsIncludingForeignImpactOfForeignExchange	227000	usd
CY2021	ftek	Allowance For Doubtful Accounts Receivable Chargeoffs Recoveries AllowanceForDoubtfulAccountsReceivableChargeoffsRecoveries	839000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	223000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	223000	usd
CY2022	ftek	Provision For Doubtful Accounts Including Foreign Impact Of Foreign Exchange ProvisionForDoubtfulAccountsIncludingForeignImpactOfForeignExchange	-19000	usd
CY2022	ftek	Allowance For Doubtful Accounts Receivable Chargeoffs Recoveries AllowanceForDoubtfulAccountsReceivableChargeoffsRecoveries	94000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	110000	usd
CY2022Q4	us-gaap	Due From Customer Acceptances DueFromCustomerAcceptances	0	usd
CY2021Q4	us-gaap	Due From Customer Acceptances DueFromCustomerAcceptances	55000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	24261000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	372000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	390000	usd
CY2020Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	850000	usd
CY2022	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	384000	usd
CY2021	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	776000	usd
CY2022Q4	ftek	Contract With Customer Contracts In Progress Number Of Contracts Identified As Loss Contracts ContractWithCustomerContractsInProgressNumberOfContractsIdentifiedAsLossContracts	0	pure
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	8245000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	7926000	usd
CY2022Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2020Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	907000	usd
CY2021	ftek	Inventory Valuation Reserve Provision InventoryValuationReserveProvision	0	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	20000	usd
CY2021Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	927000	usd
CY2021Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	927000	usd
CY2022	ftek	Inventory Valuation Reserve Provision InventoryValuationReserveProvision	0	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	0	usd
CY2022Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	927000	usd
CY2021Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	1277000	usd
CY2022Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	152000	usd
CY2021Q4	us-gaap	Accounts And Other Receivables Net Current AccountsAndOtherReceivablesNetCurrent	83000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	110000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	223000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	88000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	157000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	803000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	406000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	397000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	789000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	341000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	448000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	60000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	52000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	31000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	31000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	31000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	192000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	397000	usd
CY2022	us-gaap	Depreciation Depreciation	352000	usd
CY2021	us-gaap	Depreciation Depreciation	584000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	7729000	usd
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.039	pure
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3259000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	22992000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	22852000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	18557000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	18243000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4435000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	4609000	usd
CY2022Q4	ftek	Number Of Units With Apc Technology NumberOfUnitsWithApcTechnology	1200	pure
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	200000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	206000	usd
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	42600
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	30289000
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"><b>Risk Concentrations</b></p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">Financial instruments that potentially subject the Company to a significant concentration of credit risk consist primarily of cash and cash equivalents and accounts receivable. The Company maintains deposits in federally insured financial institutions in excess of federally insured limits. However, management believes the Company is <em style="font: inherit;">not</em> exposed to significant credit risk due to the financial position of its primary depository institution where a significant portion of its deposits are held.</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">For the year ended <em style="font: inherit;"> December 31, 2022</em>, <span style="background-color:#ffffff;">we had three customers which individually represented greater than <em style="font: inherit;">10%</em> of revenues. Two customers primarily contributed revenues to the FUEL CHEM technology segment and one contributed revenue to the APC technology segment. In total these <em style="font: inherit;">three</em> customers represented 48% of consolidated revenues. We had <em style="font: inherit;">no</em> customer that accounted for greater than <em style="font: inherit;">10%</em> of our current assets as of </span><em style="font: inherit;"> December 31, 2022</em><span style="background-color:#ffffff;">.</span></p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">For the year ended <em style="font: inherit;"> December 31, 2021</em>, we had four customers which individually represented greater than <em style="font: inherit;">10%</em> of revenues. Three customers primarily contributed revenues to the FUEL CHEM technology segment and one contributed revenue to the APC technology segment. In total these <em style="font: inherit;">four</em> customers represented 60% of consolidated revenues. We had <em style="font: inherit;">no</em> customer that accounted for greater than <em style="font: inherit;">10%</em> of our current assets as of <em style="font: inherit;"> December 31, 2021</em>.</p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;"> </p> <p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:justify;">We control credit risk through requiring milestone payments on long-term contracts, performing ongoing credit evaluations of its customers, and in some cases obtaining security for payment through bank guarantees and letters of credit.</p> <p style="font-family: "Times New Roman", Times, serif; font-size: 10pt; margin: 0pt;"> </p>
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	12497
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	15162
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	17000	usd
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	52000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	26941000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	24261000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	26941000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	24261000	usd
CY2022	ftek	Effective Income Tax Rate Reconciliation Outside Basis Differential Percent EffectiveIncomeTaxRateReconciliationOutsideBasisDifferentialPercent	0.004	pure
CY2021	ftek	Effective Income Tax Rate Reconciliation Outside Basis Differential Percent EffectiveIncomeTaxRateReconciliationOutsideBasisDifferentialPercent	0.344	pure
CY2022	ftek	Effective Income Tax Rate Reconciliation Debt Forgiveness Percent EffectiveIncomeTaxRateReconciliationDebtForgivenessPercent	0	pure
CY2022Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	4605000	usd
CY2021Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	2122000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	3082000	usd
CY2021	ftek	Effective Income Tax Rate Reconciliation Debt Forgiveness Percent EffectiveIncomeTaxRateReconciliationDebtForgivenessPercent	-4.846	pure
CY2022	ftek	Effective Income Tax Rate Reconciliation Accrual To Return Percent EffectiveIncomeTaxRateReconciliationAccrualToReturnPercent	0.031	pure
CY2021	ftek	Effective Income Tax Rate Reconciliation Accrual To Return Percent EffectiveIncomeTaxRateReconciliationAccrualToReturnPercent	-3.293	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	-0.059	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	1.449	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.095	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	1.240	pure
CY2022	ftek	Effective Income Tax Rate Reconciliation Foreign Deferred Adjustment Percent EffectiveIncomeTaxRateReconciliationForeignDeferredAdjustmentPercent	0	pure
CY2021	ftek	Effective Income Tax Rate Reconciliation Foreign Deferred Adjustment Percent EffectiveIncomeTaxRateReconciliationForeignDeferredAdjustmentPercent	10.060	pure
CY2022	ftek	Effective Income Tax Rate Reconciliation China Enterprise Tax Percent EffectiveIncomeTaxRateReconciliationChinaEnterpriseTaxPercent	0	pure
CY2021	ftek	Effective Income Tax Rate Reconciliation China Enterprise Tax Percent EffectiveIncomeTaxRateReconciliationChinaEnterpriseTaxPercent	0	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.033	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	15.903	pure
CY2022	ftek	Effective Income Tax Rate Reconciliation Other True Up Percent EffectiveIncomeTaxRateReconciliationOtherTrueUpPercent	-0	pure
CY2021	ftek	Effective Income Tax Rate Reconciliation Other True Up Percent EffectiveIncomeTaxRateReconciliationOtherTrueUpPercent	-0	pure
CY2022	ftek	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses And Other Non Deductiblespercent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLossesAndOtherNonDeductiblespercent	-0	pure
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	-1262000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	798000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-126000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	-730000	usd
CY2022	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	-1388000	usd
CY2021	us-gaap	Results Of Operations Income Before Income Taxes ResultsOfOperationsIncomeBeforeIncomeTaxes	68000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-0	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	9000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	10000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	-0	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	16000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	9000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	19000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-0	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	19000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	5000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	38000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	5000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	54000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	14000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.031	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.155	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.004	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.302	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.488	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	15.046	pure
CY2021	ftek	Effective Income Tax Rate Reconciliation Nondeductible Expense Impairment Losses And Other Non Deductiblespercent EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLossesAndOtherNonDeductiblespercent	-0	pure
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.206	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.018	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.020	pure
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	272000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	173000	usd
CY2022Q4	ftek	Deferred Tax Assets Goodwill DeferredTaxAssetsGoodwill	182000	usd
CY2021Q4	ftek	Deferred Tax Assets Goodwill DeferredTaxAssetsGoodwill	591000	usd
CY2022Q4	ftek	Deferred Tax Assets Tax Deferred Expense Royalty Accruals DeferredTaxAssetsTaxDeferredExpenseRoyaltyAccruals	10000	usd
CY2021Q4	ftek	Deferred Tax Assets Tax Deferred Expense Royalty Accruals DeferredTaxAssetsTaxDeferredExpenseRoyaltyAccruals	10000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	53000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	51000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12158000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	11950000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	1058000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	992000	usd
CY2022Q4	ftek	Deferred Tax Assets Inventory Reserve DeferredTaxAssetsInventoryReserve	233000	usd
CY2021Q4	ftek	Deferred Tax Assets Inventory Reserve DeferredTaxAssetsInventoryReserve	217000	usd
CY2022Q4	ftek	Deferred Tax Assets Depreciation DeferredTaxAssetsDepreciation	585000	usd
CY2021Q4	ftek	Deferred Tax Assets Depreciation DeferredTaxAssetsDepreciation	556000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	528000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	471000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	376000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	15550000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	14916000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	100000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	105000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	100000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	105000	usd
CY2022Q4	ftek	Net Deferred Tax Asset Before Valuation Allowance NetDeferredTaxAssetBeforeValuationAllowance	15450000	usd
CY2021Q4	ftek	Net Deferred Tax Asset Before Valuation Allowance NetDeferredTaxAssetBeforeValuationAllowance	14811000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15627000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14950000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	177000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	139000	usd
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15971000	usd
CY2021	ftek	Valuation Allowance Deferred Tax Asset Change In Amount Charged To Costs And Expenses ValuationAllowanceDeferredTaxAssetChangeInAmountChargedToCostsAndExpenses	-1021000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	0	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	0	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14950000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14950000	usd
CY2022	ftek	Valuation Allowance Deferred Tax Asset Change In Amount Charged To Costs And Expenses ValuationAllowanceDeferredTaxAssetChangeInAmountChargedToCostsAndExpenses	677000	usd
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15627000	usd
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	31272303
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	31227300
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30296297
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	30263791
CY2022Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	976006
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	963509
CY2022Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2251000	usd
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	2234000	usd
CY2022Q4	us-gaap	Share Price SharePrice	1.27
CY2021Q1	us-gaap	Warrants And Rights Outstanding WarrantsAndRightsOutstanding	7337000	usd
CY2021Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	2850000
CY2022	ftek	Class Of Warrant Or Right Number Of Warrants Issued ClassOfWarrantOrRightNumberOfWarrantsIssued	0
CY2022	ftek	Class Of Warrant Or Right Exercised During Period ClassOfWarrantOrRightExercisedDuringPeriod	0
CY2022Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	2850000
CY2022Q4	us-gaap	Class Of Warrant Or Right Outstanding ClassOfWarrantOrRightOutstanding	2850000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	434500
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.05
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	484500
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.57
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-0
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	-0
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	50000
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	3.55
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	50000
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	8.16
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	384500
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	2.98
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	434500
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.05
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	384500
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	2.98
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	434500
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.05
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P2Y5M4D
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y29D
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	27000	usd
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	38000	usd
CY2022Q4	us-gaap	Share Price SharePrice	1.27
CY2022Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	384500
CY2022	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P2Y4M24D
CY2022Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	2.98
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	usd
CY2022	us-gaap	Standard Product Warranty Accrual Period Increase Decrease StandardProductWarrantyAccrualPeriodIncreaseDecrease	0	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	159000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	176000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	198000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	29000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	21000	usd
CY2022	us-gaap	Lease Cost LeaseCost	205000	usd
CY2021	us-gaap	Lease Cost LeaseCost	219000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y9M7D
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0448	pure
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	149000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	61000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	13000	usd
CY2022Q4	ftek	Lessee Operating Lease Liability To Be Paid After Year Three LesseeOperatingLeaseLiabilityToBePaidAfterYearThree	0	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	223000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	32000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	191000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	125000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	113000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	66000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	122000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	191000	usd
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	235000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	157000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	178000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	139000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	158000	usd
CY2022Q2	ftek	Percentage Of Face Amount Of Letters Of Credit As Collateral PercentageOfFaceAmountOfLettersOfCreditAsCollateral	1.50	pure
CY2022Q2	ftek	Payment Basis Points On Face Value Of Letters Of Credit PaymentBasisPointsOnFaceValueOfLettersOfCredit	0.0250	pure
CY2022Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	689000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	pure
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	26941000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	15298000	usd
CY2022	us-gaap	Gross Profit GrossProfit	11643000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	12275000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	895000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-1527000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	24261000	usd
CY2021	us-gaap	Cost Of Revenue CostOfRevenue	12363000	usd
CY2021	us-gaap	Gross Profit GrossProfit	11898000	usd
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	12055000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1332000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-1489000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	26941000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	24261000	usd
CY2022Q4	us-gaap	Noncurrent Assets NoncurrentAssets	50124000	usd
CY2021Q4	us-gaap	Noncurrent Assets NoncurrentAssets	49974000	usd
CY2022	us-gaap	Restructuring Charges RestructuringCharges	0	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	372000	usd
CY2021Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	390000	usd
CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	159000	usd
CY2021Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	159000	usd
CY2022Q4	ftek	Other Accrued Liabilities Miscellaneous Current OtherAccruedLiabilitiesMiscellaneousCurrent	295000	usd
CY2021Q4	ftek	Other Accrued Liabilities Miscellaneous Current OtherAccruedLiabilitiesMiscellaneousCurrent	312000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	826000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	861000	usd
CY2022	dei	Auditor Firm AuditorFirmId	49

Files In Submission

Name	View Source	Status
0001437749-23-005675-index-headers.html	Edgar Link	pending
0001437749-23-005675-index.html	Edgar Link	pending
0001437749-23-005675.txt	Edgar Link	pending
0001437749-23-005675-xbrl.zip	Edgar Link	pending
ex_450119.htm	Edgar Link	pending
ex_450120.htm	Edgar Link	pending
ex_450121.htm	Edgar Link	pending
ex_450122.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
ftek-20221231.xsd	Edgar Link	pending
ftek20221231_10k.htm	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
orgchart2022.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
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$FTEK
FUEL TECH, INC. Stock $ftek

2023 Q1 Form 10-K Financial Statement

#000143774923005675 Filed on March 07, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FTEK FUEL TECH, INC. Stock $ftek

2023 Q1 Form 10-K Financial Statement

#000143774923005675 Filed on March 07, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FTEK
FUEL TECH, INC. Stock $ftek