$EFOI
ENERGY FOCUS, INC/DE Stock $efoi

$efoi Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000092416823000035 Filed on March 23, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022 Q3
Revenue	$930.0K	$663.0K	$1.764M
YoY Change	-54.88%	-72.43%	-35.83%
Cost Of Revenue	$913.0K	$901.0K	$1.927M
YoY Change	-56.25%	-59.34%	-11.85%
Gross Profit	$17.00K	-$238.0K	-$163.0K
YoY Change	-165.38%	-225.93%	-128.95%
Gross Profit Margin	1.83%	-35.9%	-9.24%
Selling, General & Admin	$1.066M	$1.255M	$1.802M
YoY Change	-49.88%	-39.69%	-8.43%
% of Gross Profit	6270.59%
Research & Development	$154.0K	$269.0K	$366.0K
YoY Change	-69.38%	-42.03%	-9.41%
% of Gross Profit	905.88%
Depreciation & Amortization	$8.000K	$30.00K	$42.00K
YoY Change	-81.82%	-33.33%	-2.33%
% of Gross Profit	47.06%
Operating Expenses	$1.220M	$1.524M	$2.244M
YoY Change	-53.61%	-40.12%	-5.44%
Operating Profit	-$1.203M	-$1.762M	-$2.407M
YoY Change	-54.71%	-25.21%	32.98%
Interest Expense	$123.0K	-$275.0K	$235.0K
YoY Change	-33.15%	1.1%	32.77%
% of Operating Profit
Other Income/Expense, Net	-$7.000K	$69.00K	-$96.00K
YoY Change	-36.36%	-483.33%	540.0%
Pretax Income	-$1.333M	-$2.306M	-$2.662M
YoY Change	-52.75%	-12.39%	133.51%
Income Tax		$4.000K
% Of Pretax Income
Net Earnings	-$1.333M	-$2.310M	-$2.662M
YoY Change	-52.75%	-12.2%	133.51%
Net Earnings / Revenue	-143.33%	-348.42%	-150.91%
Basic Earnings Per Share		-$0.23	-$0.29
Diluted Earnings Per Share	-$0.08	-$0.23	-$289.7K
COMMON SHARES
Basic Shares Outstanding	18.13M shares	9.577M shares	9.190M shares
Diluted Shares Outstanding	16.17M shares	9.583M shares	9.190M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$916.0K	$644.0K	$651.0K
YoY Change	-1.08%	-81.03%	-49.69%
Cash & Equivalents	$301.0K	$100.0K	$41.00K
Short-Term Investments	$615.0K	$592.0K	$610.0K
Other Short-Term Assets	$226.0K	$0.00	$788.0K
YoY Change	-75.14%	-100.0%	-44.55%
Inventory	$4.938M	$5.476M	$6.156M
Prepaid Expenses
Receivables	$909.0K	$445.0K	$1.007M
Other Receivables	$445.0K	$445.0K	$0.00
Total Short-Term Assets	$7.434M	$7.242M	$8.602M
YoY Change	-29.42%	-46.05%	-28.9%
LONG-TERM ASSETS
Property, Plant & Equipment	$1.179M	$1.256M	$1.681M
YoY Change	-41.55%	29.89%	66.93%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets	$1.179M	$1.256M	$1.681M
YoY Change	-41.55%	29.89%	66.93%
TOTAL ASSETS
Total Short-Term Assets	$7.434M	$7.242M	$8.602M
Total Long-Term Assets	$1.179M	$1.256M	$1.681M
Total Assets	$8.613M	$8.498M	$10.28M
YoY Change	-31.37%	-40.95%	-21.53%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.177M	$2.204M	$1.886M
YoY Change	-2.38%	-1.39%	-27.63%
Accrued Expenses	$841.0K	$863.0K	$1.019M
YoY Change	-41.43%	-51.08%	-39.92%
Deferred Revenue			$7.000K
YoY Change			250.0%
Short-Term Debt	$388.0K	$2.261M	$1.976M
YoY Change	-87.52%	4.24%	-25.88%
Long-Term Debt Due	$1.277M	$2.618M	$1.972M
YoY Change	9.99%	52.21%	23.02%
Total Short-Term Liabilities	$4.683M	$7.946M	$6.860M
YoY Change	-40.99%	-2.57%	-19.98%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$815.0K
YoY Change
Other Long-Term Liabilities	$975.0K	$1.029M	$1.082M
YoY Change	-17.44%	3857.69%	3506.67%
Total Long-Term Liabilities	$975.0K	$1.029M	$1.897M
YoY Change	-17.44%	3857.69%	6223.33%
TOTAL LIABILITIES
Total Short-Term Liabilities	$4.683M	$7.946M	$6.860M
Total Long-Term Liabilities	$975.0K	$1.029M	$1.897M
Total Liabilities	$5.658M	$8.975M	$8.757M
YoY Change	-37.94%	9.69%	1.79%
SHAREHOLDERS EQUITY
Retained Earnings	-$150.4M	-$149.0M	-$146.7M
YoY Change	6.21%	7.41%	7.79%
Common Stock	$153.3M	$148.5M	$148.2M
YoY Change	5.74%	2.48%	5.42%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.955M	$1.500M	$1.526M
YoY Change
Total Liabilities & Shareholders Equity	$8.613M	$8.498M	$10.28M
YoY Change	-31.37%	-40.95%	-21.53%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022 Q3
OPERATING ACTIVITIES
Net Income	-$1.333M	-$2.310M	-$2.662M
YoY Change	-52.75%	-12.2%	133.51%
Depreciation, Depletion And Amortization	$8.000K	$30.00K	$42.00K
YoY Change	-81.82%	-33.33%	-2.33%
Cash From Operating Activities	-$1.200M	-$472.0K	-$891.0K
YoY Change	-55.6%	-64.91%	-61.51%
INVESTING ACTIVITIES
Capital Expenditures	$0.00	$0.00	$9.000K
YoY Change	-100.0%	-100.0%	-91.0%
Acquisitions
YoY Change
Other Investing Activities		$25.00K
YoY Change
Cash From Investing Activities	$0.00	$25.00K	-$9.000K
YoY Change	-100.0%	-118.94%	-91.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$1.432M	458.0K	$3.000K
YoY Change	409.61%	-87.88%	-99.73%
NET CHANGE
Cash From Operating Activities	-$1.200M	-472.0K	-$891.0K
Cash From Investing Activities	$0.00	25.00K	-$9.000K
Cash From Financing Activities	$1.432M	458.0K	$3.000K
Net Change In Cash	$249.0K	11.00K	-$897.0K
YoY Change	-110.13%	-99.52%	-30.36%
FREE CASH FLOW
Cash From Operating Activities	-$1.200M	-$472.0K	-$891.0K
Capital Expenditures	$0.00	$0.00	$9.000K
Free Cash Flow	-$1.200M	-$472.0K	-$900.0K
YoY Change	-56.17%	-61.09%	-62.73%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000924168
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Entity Registrant Name EntityRegistrantName	ENERGY FOCUS, INC/DE
CY2020Q1	us-gaap	Stockholders Equity Note Stock Split Conversion Ratio1 StockholdersEquityNoteStockSplitConversionRatio1	0.2
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	9500000	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	18133100	shares
CY2022	dei	Auditor Firm AuditorFirmId	1808
CY2022	dei	Auditor Name AuditorName	GBQ Partners, LLC
CY2022	dei	Auditor Location AuditorLocation	Columbus, Ohio
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	52000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2682000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	26000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	14000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	445000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1240000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	5476000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	7866000	usd
CY2022Q4	us-gaap	Deposits Assets Current DepositsAssetsCurrent	592000	usd
CY2021Q4	us-gaap	Deposits Assets Current DepositsAssetsCurrent	712000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	232000	usd
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	479000	usd
CY2022Q4	efoi	Receivable For Claimed Employee Retention Tax Credit Current ReceivableForClaimedEmployeeRetentionTaxCreditCurrent	445000	usd
CY2021Q4	efoi	Receivable For Claimed Employee Retention Tax Credit Current ReceivableForClaimedEmployeeRetentionTaxCreditCurrent	445000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	7242000	usd
CY2021Q4	us-gaap	Assets Current AssetsCurrent	13424000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	76000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	675000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1180000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	292000	usd
CY2022Q4	us-gaap	Assets Assets	8498000	usd
CY2021Q4	us-gaap	Assets Assets	14391000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2204000	usd
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	2235000	usd
CY2022Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	145000	usd
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	265000	usd
CY2022Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	0	usd
CY2021Q4	us-gaap	Accrued Professional Fees Current AccruedProfessionalFeesCurrent	104000	usd
CY2022Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	261000	usd
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	718000	usd
CY2022Q4	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	76000	usd
CY2021Q4	us-gaap	Accrued Sales Commission Current AccruedSalesCommissionCurrent	57000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	183000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	295000	usd
CY2022Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	0	usd
CY2021Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	268000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	198000	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	325000	usd
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CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1000	usd
CY2022Q4	us-gaap	Notes Payable Current NotesPayableCurrent	2618000	usd
CY2021Q4	us-gaap	Notes Payable Current NotesPayableCurrent	1719000	usd
CY2022Q4	us-gaap	Notes Payable Related Parties Classified Current NotesPayableRelatedPartiesClassifiedCurrent	814000	usd
CY2021Q4	us-gaap	Notes Payable Related Parties Classified Current NotesPayableRelatedPartiesClassifiedCurrent	0	usd
CY2022Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	1447000	usd
CY2021Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	2169000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	7946000	usd
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	8156000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1029000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	26000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	8975000	usd
CY2021Q4	us-gaap	Liabilities Liabilities	8182000	usd
CY2022Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.0001
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
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CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	876447	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	876447	shares
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.0001
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CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	50000000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	9848438	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	9848438	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	6368549	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	6368549	shares
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	1000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	0	usd
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CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	144953000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3000	usd
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-149020000	usd
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-138741000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	-477000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	6209000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	8498000	usd
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	14391000	usd
CY2022	us-gaap	Revenues Revenues	5968000	usd
CY2021	us-gaap	Revenues Revenues	9865000	usd
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	6286000	usd
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	8167000	usd
CY2022	us-gaap	Gross Profit GrossProfit	-318000	usd
CY2021	us-gaap	Gross Profit GrossProfit	1698000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1891000	usd
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CY2022	us-gaap	Restructuring Costs RestructuringCosts	0	usd
CY2021	us-gaap	Restructuring Costs RestructuringCosts	-21000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	8977000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	-8707000	usd
CY2022	efoi	Gain Loss On Forgiveness Of Debt GainLossOnForgivenessOfDebt	0	usd
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CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	-1.27
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CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8110000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4561000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4561000	shares
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-10279000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-7886000	usd
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CY2022	efoi	Gain Loss From Employee Retention Tax Credit GainLossFromEmployeeRetentionTaxCredit	30000	usd
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CY2022	efoi	Interest Paid Including Capitalized Interest Operating Activities InterestPaidIncludingCapitalizedInterestOperatingActivities	40000	usd
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CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	117000	usd
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	429000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	6000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	32000	usd
CY2021	us-gaap	Inventory Write Down InventoryWriteDown	156000	usd
CY2022	efoi	Increase Decrease In Provision For Warranties IncreaseDecreaseInProvisionForWarranties	-111000	usd
CY2021	efoi	Increase Decrease In Provision For Warranties IncreaseDecreaseInProvisionForWarranties	68000	usd
CY2022	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	364000	usd
CY2021	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	230000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-338000	usd
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-783000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-783000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2358000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	2381000	usd
CY2022	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	-120000	usd
CY2021	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	-257000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-247000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-669000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-1000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-423000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-596000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-380000	usd
CY2022	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	-268000	usd
CY2021	us-gaap	Increase Decrease In Deferred Revenue IncreaseDecreaseInDeferredRevenue	196000	usd
CY2022	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	3566000	usd
CY2021	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-1879000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-6713000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-9765000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	41000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	443000	usd
CY2022	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	25000	usd
CY2021	us-gaap	Proceeds From Sales Of Assets Investing Activities ProceedsFromSalesOfAssetsInvestingActivities	0	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-16000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-443000	usd
CY2022	efoi	Proceeds From Issuance Of Common Stock And Warrants ProceedsFromIssuanceOfCommonStockAndWarrants	3500000	usd
CY2021	efoi	Proceeds From Issuance Of Common Stock And Warrants ProceedsFromIssuanceOfCommonStockAndWarrants	9500000	usd
CY2022	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	0	usd
CY2021	us-gaap	Proceeds From Warrant Exercises ProceedsFromWarrantExercises	801000	usd
CY2022	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	334000	usd
CY2021	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	969000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3000	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6000	usd
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	80000	usd
CY2022	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	0	usd
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	1000	usd
CY2022	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt	800000	usd
CY2021	us-gaap	Proceeds From Related Party Debt ProceedsFromRelatedPartyDebt		usd
CY2022	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	114000	usd
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	30000	usd
CY2022	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-768000	usd
CY2021	us-gaap	Proceeds From Repayments Of Lines Of Credit ProceedsFromRepaymentsOfLinesOfCredit	-181000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	4099000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	10712000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-2630000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	504000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2682000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2178000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2682000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	364000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	381000	usd
CY2022	us-gaap	Income Taxes Paid IncomeTaxesPaid	1000	usd
CY2021	us-gaap	Income Taxes Paid IncomeTaxesPaid	4000	usd
CY2022	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	304000	usd
CY2021	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	0	usd
CY2022	us-gaap	Nature Of Operations NatureOfOperations	NATURE OF OPERATIONS <div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Energy Focus, Inc. engages primarily in the design, development, manufacturing, marketing and sale of energy-efficient lighting systems and controls. We develop, market and sell high quality light-emitting diode (“LED”) lighting and controls products in the commercial market and military maritime market (“MMM”), and began to expand our offerings into the consumer market in the fourth quarter of 2021. Our mission is to enable our customers to run their facilities, offices with greater energy efficiency, productivity, and human health and wellness through advanced LED retrofit solutions. Our goal is to be the human wellness lighting and LED technology and market leader for the most demanding applications where performance, quality, value, environmental impact and health are considered paramount. We specialize in LED lighting retrofit by replacing fluorescent, high-intensity discharge lighting and other types of lamps in institutional buildings for primarily indoor lighting applications with our innovative, high-quality commercial and military-grade tubular LED (“TLED”) products, as well as other LED and lighting control products for commercial and consumer applications. In late 2020, we announced the launch of ultraviolet-C light disinfection (“UVCD”) products. After evaluating market demand and supply chain challenges for our UVCD products, we revised our business strategy to primarily focus on our MMM and commercial and industrial lighting and control products. We are also evaluating adjacent technologies including Gallium Nitride (“GaN”) based power supplies and additional market opportunities in energy solution products that promote sustainability.</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The LED lighting industry has changed dramatically over the past several years due to increasing competition and price erosion. We have been experiencing these industry forces in both our military business since 2016 and in our commercial segment, where we once commanded significant price premiums for our flicker-free TLEDs with primarily 10-year warranties. In more recent years, we have focused on redesigning our products for lower costs and consolidated our supply chain for stronger purchasing power in an effort to price our products more competitively. Despite these efforts, our legacy products continue to face aggressive pricing competition and a convergence of product functionality in the marketplace, and we have shifted to diversifying our supply chain in an effort to increase value and remain competitive. These trends are not unique to Energy Focus as evidenced by the increasing number of industry peers facing challenges, exiting LED lighting, selling assets and even going out of business.</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In addition to continuously pursuing cost reductions, our strategy to combat these trends is to innovate both our technology and product offerings with differentiated products and solutions that offer greater, distinct value. Specific examples of these</span><span style="color:#ee2724;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">products we have developed include the RedCap</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-style:italic;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">®</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, our emergency backup battery integrated TLED, EnFocus™, our new dimmable/color-tunable lighting and powerline control platform that we launched in 2020, and the second generation of EnFocus™ powerline control switches and circadian lighting system for both commercial and residential markets, which as a result of supply chain challenges we now plan to launch in 2023. Similarly, our plans to expand and enhance the performance of our RedCap</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-style:italic;font-weight:400;line-height:120%;position:relative;top:-3.5pt;vertical-align:baseline">®</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%"> </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">product line are also now expected in 2023. We continue to evaluate our sales strategy and believe our go-to-market strategy that focuses more on direct-sales marketing, selectively expanding our channel partner network to cover territories across the country, and listening to the voice of the customer, will lead to better and more impactful product development efforts that we believe will eventually translate into larger addressable markets and greater sales growth for us.</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has experienced significant sales declines, operating losses and increases in its inventory. Beginning in 2019, significant restructuring efforts were undertaken. The Company replaced the entire senior management team, significantly reduced non-critical expenses, minimized the amount of inventory the Company was purchasing, dramatically changed the composition of our board of directors (“Board of Directors”) and the executive team, and recruited new departmental leaders across the Company. The initial cost savings efforts to reduce costs to minimize cash usage included the elimination of certain positions, restructuring of the sales organization and incentive plan, flattening of the senior management team, additional operational streamlining, management compensation reductions, and outsourcing of certain functions including certain elements of supply chain and marketing.</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">During 2021 and 2022, we realized initial cost-savings benefits from these relaunch efforts, but continued to face significant operating losses. Despite these cost-cutting efforts, the company faced a challenging commercial market with continuing impacts from the global pandemic combined with ongoing delays in MMM projects and funding that continued to depress sales through 2021 while the company invested in exploring additional lines of business with UVCD technology that ultimately gained little traction in the market.</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">At the beginning of 2022, the board of directors appointed our lead independent director to serve as interim chief executive officer and replace our previous chief executive officer. During 2022, the company expanded its cost-reduction efforts, reduced its warehouse square footage, undertook an inventory reduction project, and dramatically reduced head count. In February and September of 2022, we also added three experienced executives to our Board of Directors with extensive lighting and consumer </span></div>products industry experience. We reinvested in our MMM sales channel with a strategic hire in May 2022 and continue to pursue these sales opportunities, though the sales cycles for what are frequently made-to-order products are longer than commercial offerings.
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of estimates</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting periods presented. Estimates include, but are not limited to, the establishment of reserves for accounts receivable, sales returns, inventory excess and obsolescence reserve and warranty claims, the useful lives for property and equipment and stock-based compensation. In addition, estimates and assumptions associated with the determination of the fair value of financial instruments and evaluation of long-lived assets for impairment requires considerable judgment. Actual results could differ from those estimates and such differences could be material.</span></div>
CY2022Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	471000	usd
CY2021Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1254000	usd
CY2020Q4	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	2029000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	26000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	14000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	8000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	445000	usd
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1240000	usd
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2021000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	100000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2700000	usd
CY2022	efoi	Increase Decrease In Inventory Levels Gross IncreaseDecreaseInInventoryLevelsGross	2900000	usd
CY2022	efoi	Increase Decrease In Inventory Reserves IncreaseDecreaseInInventoryReserves	500000	usd
CY2021	efoi	Increase Decrease In Inventory Levels Gross IncreaseDecreaseInInventoryLevelsGross	2400000	usd
CY2021	efoi	Increase Decrease In Inventory Reserves IncreaseDecreaseInInventoryReserves	200000	usd
CY2022	efoi	Contract With Customer Payment Terms ContractWithCustomerPaymentTerms	P30D
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-7886000	usd
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	8110000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	8110000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4561000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4561000	shares
CY2022	us-gaap	Depreciation Depreciation	200000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-10279000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	300000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	400000	usd
CY2022	efoi	Product Warranty Number Of Products Sold ProductWarrantyNumberOfProductsSold	1	product
CY2022	efoi	Product Warranty Number Of Years For Product Sold ProductWarrantyNumberOfYearsForProductSold	P20Y
CY2022	efoi	Product Warranty Number Of Contracts Expired ProductWarrantyNumberOfContractsExpired	1	contract
CY2022	efoi	Product Warranty Number Of Years For Expired Contract ProductWarrantyNumberOfYearsForExpiredContract	P10Y
CY2021Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	295000	usd
CY2020Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	227000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	24000	usd
CY2021	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	-41000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	-136000	usd
CY2021	us-gaap	Standard Product Warranty Accrual Preexisting Increase Decrease StandardProductWarrantyAccrualPreexistingIncreaseDecrease	47000	usd
CY2022	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	0	usd
CY2021	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	62000	usd
CY2022Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	183000	usd
CY2021Q4	us-gaap	Standard Product Warranty Accrual Current StandardProductWarrantyAccrualCurrent	295000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	423000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	532000	usd
CY2022	efoi	Restructured Leases Operating Lease Payments RestructuredLeasesOperatingLeasePayments	0	usd
CY2021	efoi	Restructured Leases Operating Lease Payments RestructuredLeasesOperatingLeasePayments	35000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1000	usd
CY2022	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Certain risks and concentrations</span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Historically, our products were sold through a direct sales model, which included a combination of direct sales employees, electrical and lighting contractors, and distributors. From time to time, we have utilized a third-party accounts receivable insurance and credit assessment company. Although we maintain allowances for potential credit losses that we believe to be adequate, a payment default on a significant sale could materially and adversely affect our operating results and financial condition, although we have mitigated this risk somewhat through the accounts receivable insurance program.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have certain customers whose net sales individually represented 10% or more of our total net sales, or whose net trade accounts receivable balance individually represented 10% or more of our total net trade accounts receivable, as follows:</span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">In 2022, two customers accounted for 27% of net sales, with sales to our primary distributor for the U.S. Navy accounting for approximately 13% and sales to a regional commercial lighting retrofit company accounting for approximately 14% of net sales. When sales to our primary distributor for the U.S. Navy are combined with sales to shipbuilders for the U.S. Navy, total net sales of products for the U.S. Navy comprised approximately 30% of net sales for the same period. In 2021, two customers accounted for 43% of net sales, with sales to our primary distributor for the U.S. Navy accounting for approximately 30% and sales to a regional commercial lighting retrofit company accounting for approximately 13% of net sales. When sales to our primary distributor for the U.S. Navy are combined with sales to shipbuilders for the U.S. Navy, total net sales of products for the U.S. Navy comprised approximately 38% of net sales for the same period. </span></div><div style="margin-bottom:10pt;padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">At December 31, 2022, a distributor to the U.S. Department of Defense accounted for 25% of our net trade accounts receivable, when combined with our net trade accounts receivable to shipbuilders for the U.S. Navy, total net accounts receivable related to U.S. Navy sales is 30% of total net accounts receivable. At December 31, 2021, a distributor to the U.S. Department of Defense accounted for 20% of our net trade accounts receivable and a shipbuilder for the U.S. Navy accounted for 36% of our net trade accounts receivable. </span></div><div style="margin-bottom:10pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We require substantial amounts of purchased materials from selected vendors. With specific materials, all of our purchases are from a single vendor. The availability and costs of materials may be subject to change due to, among other things, new laws or regulations, suppliers’ allocation to other purchasers, interruptions in production by suppliers, global health issues such as the COVID-19 pandemic, and changes in exchange rates and worldwide price and demand levels. Our inability to obtain adequate supplies of materials for our products at favorable prices could have a material adverse effect on our business, financial position, or results of operations by decreasing our profit margins and by hindering our ability to deliver products to our customers on a timely basis. Additionally, certain vendors require advance deposits prior to the fulfillment of orders. Deposits paid on unfulfilled orders totaled $0.6 million and $0.7 million at December 31, 2022 and 2021, respectively.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">We have certain vendors who individually represented 10% or more of our total expenditures, or whose net trade accounts payable balance individually represented 10% or more of our total net trade accounts payable, as follows:</span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">One offshore supplier accounted for approximately 16% of our total expenditures for the twelve months ended December 31, 2022. At December 31, 2022, this same offshore supplier accounted for approximately 36% of our trade accounts payable balance.</span></div><div style="margin-bottom:10pt;padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">One offshore supplier accounted for approximately 29% of our total expenditures for the twelve months ended December 31, 2021. At December 31, 2021, this same offshore supplier accounted for approximately 60% of our trade accounts payable balance.</span></div>
CY2022Q4	us-gaap	Supplies Supplies	600000	usd
CY2021Q4	us-gaap	Supplies Supplies	700000	usd
CY2022Q4	efoi	Lessee Operating Lease Interest Rate Effective Rate LesseeOperatingLeaseInterestRateEffectiveRate	0.1593
CY2022Q4	us-gaap	Lessee Operating Lease Discount Rate LesseeOperatingLeaseDiscountRate	0.0725
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y4M24D
CY2022	us-gaap	Sublease Income SubleaseIncome	90000	usd
CY2021	us-gaap	Sublease Income SubleaseIncome	112000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	501000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	558000	usd
CY2022	efoi	Operating Lease Cost Net Of Sublease Income OperatingLeaseCostNetOfSubleaseIncome	411000	usd
CY2021	efoi	Operating Lease Cost Net Of Sublease Income OperatingLeaseCostNetOfSubleaseIncome	446000	usd
CY2022	efoi	Restructured Lease Sublease Income RestructuredLeaseSubleaseIncome	0	usd
CY2021	efoi	Restructured Lease Sublease Income RestructuredLeaseSubleaseIncome	136000	usd
CY2022	efoi	Restructured Lease Operating Lease Cost RestructuredLeaseOperatingLeaseCost	0	usd
CY2021	efoi	Restructured Lease Operating Lease Cost RestructuredLeaseOperatingLeaseCost	110000	usd
CY2022	efoi	Restructured Lease Operating Lease Cost Net Of Sublease Income RestructuredLeaseOperatingLeaseCostNetOfSubleaseIncome	0	usd
CY2021	efoi	Restructured Lease Operating Lease Cost Net Of Sublease Income RestructuredLeaseOperatingLeaseCostNetOfSubleaseIncome	-26000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	0	usd
CY2022	efoi	Finance Lease Cost Net FinanceLeaseCostNet	1000	usd
CY2021	efoi	Finance Lease Cost Net FinanceLeaseCostNet	0	usd
CY2022	us-gaap	Lease Cost LeaseCost	412000	usd
CY2021	us-gaap	Lease Cost LeaseCost	420000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-10300000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-7900000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-6700000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-9800000	usd
CY2022Q3	efoi	Common Stock Closing Bid Price Threshold CommonStockClosingBidPriceThreshold	1.00
CY2022Q3	efoi	Number Of Consecutive Days For Bid Price Below Threshold NumberOfConsecutiveDaysForBidPriceBelowThreshold	30	d
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	5000000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	2500000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1500000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1180000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	292000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1227000	usd
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	351000	usd
CY2022Q4	efoi	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	13000	usd
CY2021Q4	efoi	Finance Lease Right Of Use Asset Gross FinanceLeaseRightOfUseAssetGross	13000	usd
CY2022Q4	efoi	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	13000	usd
CY2021Q4	efoi	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	12000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	0	usd
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	1000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	usd
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	0	usd
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	1000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	386000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	379000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	385000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	390000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	197000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1737000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	510000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1227000	usd
CY2022Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	3347000	usd
CY2021Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	3882000	usd
CY2022Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	4656000	usd
CY2021Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	7034000	usd
CY2022Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	2527000	usd
CY2021Q4	us-gaap	Inventory Valuation Reserves InventoryValuationReserves	3050000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	5476000	usd
CY2021Q4	us-gaap	Inventory Net InventoryNet	7866000	usd
CY2020Q4	efoi	Inventory Valuation Reserves Raw Materials InventoryValuationReservesRawMaterials	2894000	usd
CY2022	efoi	Inventory Valuation Reserves Provision Accrual InventoryValuationReservesProvisionAccrual	-312000	usd
CY2021	efoi	Inventory Valuation Reserves Provision Accrual InventoryValuationReservesProvisionAccrual	-281000	usd
CY2022	efoi	Inventory Valuation Reserves Sales Of Inventory InventoryValuationReservesSalesOfInventory	323000	usd
CY2021	efoi	Inventory Valuation Reserves Sales Of Inventory InventoryValuationReservesSalesOfInventory	125000	usd
CY2022	efoi	Inventory Valuation Reserves Write Offs InventoryValuationReservesWriteOffs	512000	usd
CY2021	efoi	Inventory Valuation Reserves Write Offs InventoryValuationReservesWriteOffs	0	usd
CY2022Q4	efoi	Inventory Valuation Reserves Raw Materials InventoryValuationReservesRawMaterials	2527000	usd
CY2021Q4	efoi	Inventory Valuation Reserves Raw Materials InventoryValuationReservesRawMaterials	3050000	usd
CY2022	efoi	Increase Decrease In Inventory Reserves IncreaseDecreaseInInventoryReserves	500000	usd
CY2022	efoi	Increase Decrease In Inventory Levels Gross IncreaseDecreaseInInventoryLevelsGross	2900000	usd
CY2021	efoi	Increase Decrease In Inventory Levels Gross IncreaseDecreaseInInventoryLevelsGross	2400000	usd
CY2021	efoi	Increase Decrease In Inventory Reserves IncreaseDecreaseInInventoryReserves	200000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	0	usd
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Before Accumulated Amortization FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization	13000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	1392000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	3477000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	1316000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization	2802000	usd
CY2022Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	76000	usd
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	675000	usd
CY2021	us-gaap	Depreciation Depreciation	200000	usd
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	334000	usd
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0	usd
CY2022Q4	us-gaap	Prepaid Insurance PrepaidInsurance	63000	usd
CY2021Q4	us-gaap	Prepaid Insurance PrepaidInsurance	131000	usd
CY2022Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	130000	usd
CY2021Q4	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	253000	usd
CY2022Q4	us-gaap	Prepaid Rent PrepaidRent	39000	usd
CY2021Q4	us-gaap	Prepaid Rent PrepaidRent	74000	usd
CY2022Q4	us-gaap	Security Deposit SecurityDeposit	0	usd
CY2021Q4	us-gaap	Security Deposit SecurityDeposit	18000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	0	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	3000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	232000	usd
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	479000	usd
CY2020Q3	efoi	Debt Instrument Number Of Credit Facilities DebtInstrumentNumberOfCreditFacilities	2	creditfacility
CY2022Q2	us-gaap	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1800000	usd
CY2021	efoi	Gain Loss On Forgiveness Of Debt GainLossOnForgivenessOfDebt	801000	usd
CY2022Q4	us-gaap	Purchase Obligation PurchaseObligation	600000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Exercised ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised	237892	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	226960	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.95
CY2020Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000	shares
CY2020Q1	efoi	Percentage Of Series A Preferred Stock Eligible To Vote PercentageOfSeriesAPreferredStockEligibleToVote	0.1107
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	117000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	429000	usd
CY2022Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	100000	usd
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	300000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y9M18D
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y8M12D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	221450	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.45
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	88240	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	5.07
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	36706	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	5.35
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	1650	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	49.18
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	4225	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	1.96
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	267109	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.46
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	160778	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	2.99
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	2233	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	2.78
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	250	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	1.45
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	276267	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	2.13
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	117542	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.13
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	250	shares
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	4225	shares
CY2022Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	330808	shares
CY2022	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P8Y
CY2022Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	1.97
CY2022Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	117542	shares
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y4M24D
CY2022Q4	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	3.13
CY2022Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	4000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-1000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.013
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.097
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.182
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.327
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.041
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.020
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.000
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.000
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	1455000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	1550000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	294000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	73000	usd
CY2022Q4	efoi	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	306000	usd
CY2021Q4	efoi	Deferred Tax Assets Leasing Arrangements DeferredTaxAssetsLeasingArrangements	88000	usd
CY2022Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	438000	usd
CY2021Q4	us-gaap	Deferred Tax Assets In Process Research And Development DeferredTaxAssetsInProcessResearchAndDevelopment	49000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	18856000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	17318000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	20764000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	18932000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	usd
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	usd
CY2022Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	9200000	usd
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	9600000	usd
CY2022Q4	efoi	Deferred Tax Assets Operating Loss Carryforwards Portion Available After Application Of Irc Section382 Limitations DeferredTaxAssetsOperatingLossCarryforwardsPortionAvailableAfterApplicationOfIRCSection382Limitations	78000000	usd
CY2022Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	9200000	usd
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	9600000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Subject To Expiration DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration	37500000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	0	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	0	usd
CY2021Q4	efoi	Employer Deferred Payroll Taxes Liability Cares Act EmployerDeferredPayrollTaxesLiabilityCARESAct	77000	usd
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.22
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.22
CY2022	us-gaap	Revenues Revenues	5968000	usd
CY2021	us-gaap	Revenues Revenues	9865000	usd
CY2022	us-gaap	Revenues Revenues	5968000	usd
CY2021	us-gaap	Revenues Revenues	9865000	usd
CY2021Q4	efoi	Longlived Assets Locatedin Us Percent LonglivedAssetsLocatedinUSPercent	1
CY2022Q4	efoi	Longlived Assets Locatedin Us Percent LonglivedAssetsLocatedinUSPercent	1
CY2021Q3	efoi	Payroll Tax Credit Employee Retention Credit Under The Cares Act PayrollTaxCreditEmployeeRetentionCreditUnderTheCARESAct	431000	usd
CY2021Q2	efoi	Payroll Tax Credit Employee Retention Credit Under The Cares Act Current PayrollTaxCreditEmployeeRetentionCreditUnderTheCARESActCurrent	445000	usd
CY2021Q4	efoi	Payroll Tax Credit Employee Retention Credit Under The Cares Act Current PayrollTaxCreditEmployeeRetentionCreditUnderTheCARESActCurrent	445000	usd
CY2021Q4	efoi	Payroll Tax Credit Employee Retention Credit Under The Cares Act Current PayrollTaxCreditEmployeeRetentionCreditUnderTheCARESActCurrent	445000	usd
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.59
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.59
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.45
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.45
CY2021Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5312000	shares
CY2021Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5312000	shares
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	5086000	shares
CY2022Q4	us-gaap	Revenues Revenues	663000	usd
CY2022Q3	us-gaap	Revenues Revenues	1764000	usd
CY2022Q2	us-gaap	Revenues Revenues	1480000	usd
CY2022Q1	us-gaap	Revenues Revenues	2061000	usd
CY2022Q4	us-gaap	Gross Profit GrossProfit	-238000	usd
CY2022Q3	us-gaap	Gross Profit GrossProfit	-163000	usd
CY2022Q2	us-gaap	Gross Profit GrossProfit	109000	usd
CY2022Q1	us-gaap	Gross Profit GrossProfit	-26000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	-2310000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	-2662000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	-2486000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	-2821000	usd
CY2022Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.23
CY2022Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.23
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.29
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.29
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.35
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.35
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.44
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.44
CY2022Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9583000	shares
CY2022Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9583000	shares
CY2022Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9190000	shares
CY2022Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9190000	shares
CY2022Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4211000	shares
CY2022Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4211000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	6437000	shares
CY2022Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	6437000	shares
CY2021Q4	us-gaap	Revenues Revenues	2405000	usd
CY2021Q3	us-gaap	Revenues Revenues	2749000	usd
CY2021Q2	us-gaap	Revenues Revenues	2074000	usd
CY2021Q1	us-gaap	Revenues Revenues	2637000	usd
CY2021Q4	us-gaap	Gross Profit GrossProfit	189000	usd
CY2021Q3	us-gaap	Gross Profit GrossProfit	563000	usd
CY2021Q2	us-gaap	Gross Profit GrossProfit	393000	usd
CY2021Q1	us-gaap	Gross Profit GrossProfit	553000	usd
CY2021Q4	us-gaap	Net Income Loss NetIncomeLoss	-2631000	usd
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-1140000	usd
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	-2473000	usd
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	-1642000	usd
CY2021Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.50
CY2021Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.50
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	5086000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4211000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4211000	shares
CY2021Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	3612000	shares
CY2021Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	3612000	shares

Files In Submission

Name	View Source	Status
0000924168-23-000035-index-headers.html	Edgar Link	pending
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0000924168-23-000035.txt	Edgar Link	pending
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$EFOI
ENERGY FOCUS, INC/DE Stock $efoi

2023 Q1 Form 10-K Financial Statement

#000092416823000035 Filed on March 23, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EFOI ENERGY FOCUS, INC/DE Stock $efoi

2023 Q1 Form 10-K Financial Statement

#000092416823000035 Filed on March 23, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EFOI
ENERGY FOCUS, INC/DE Stock $efoi