XML 59 R46.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Debt - Credit Facilities (Details) |  |  | 1 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 11, 2022 | Aug. 11, 2020 USD ($) creditFacility | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Apr. 20, 2021 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |
Number of debt financing facilities | creditFacility |  | 2 |  |  |
Credit line borrowings, net of loan origination fees |  |  | $ 1,976,000 | $ 2,169,000 |
Revolving Credit Facility | Inventory Facility |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum borrowing capacity on line of credit |  | $ 3,000,000 |  |  | $ 3,500,000
Inventory costs |  | 75.00% |  |  |
Inventory, net orderly liquidation value |  | 85.00% |  |  |
Interest rate |  | 5.75% | 23.40% | 22.40% |
Monthly service fee |  | 1.00% |  |  |
Minimum monthly fee |  | $ 18,000 |  |  |
Line of credit term (in years) | 1 year |  | 1 year |  |
Termination notice period | 90 days |  |  |  |
Annual facility fee |  |  | $ 70,000 |  |
Credit line borrowings, net of loan origination fees |  |  | 1,600,000 | $ 1,200,000 |
Amortized net issuance costs |  |  | $ 64,000 | $ 84,000 |
Revolving Credit Facility | Inventory Facility | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Interest rate |  | 4.00% |  |  |
Base rate, variable |  |  | 3.07% | 0.21% |
Revolving Credit Facility | Receivables Facility |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum borrowing capacity on line of credit |  | $ 2,500,000 |  |  |
Interest rate |  | 2.00% | 9.40% | 8.00% |
Monthly service fee |  | 1.00% |  |  |
Minimum monthly fee |  | $ 25,000 |  |  |
Line of credit term (in years) | 1 year |  | 1 year |  |
Annual facility fee |  |  | $ 25,000 |  |
Percent of accounts receivable used as borrowing capacity |  | 90.00% |  |  |
Stated interest rate on collateral management fee |  |  | 6.00% | 6.00% |
Credit line borrowings, net of loan origination fees |  |  | $ 400,000 | $ 1,000,000 |
Amortized net issuance costs |  |  | $ 21,000 | $ 24,000 |
Revolving Credit Facility | Receivables Facility | Wall Street Journal, Highest Prime Rate |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Base rate, variable |  |  | 6.25% | 3.25% |

X
- Definition Debt Instrument, Base Rate, Variable + References No definition available. + Details
Name: | efoi_DebtInstrumentBaseRateVariable
Namespace Prefix: | efoi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Interest Rate, Stated Percentage, Collateral Management Fee + References No definition available. + Details
Name: | efoi_DebtInstrumentInterestRateStatedPercentageCollateralManagementFee
Namespace Prefix: | efoi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Number Of Credit Facilities + References No definition available. + Details
Name: | efoi_DebtInstrumentNumberOfCreditFacilities
Namespace Prefix: | efoi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line Of Credit Facility, Annual Facility Fee + References No definition available. + Details
Name: | efoi_LineOfCreditFacilityAnnualFacilityFee
Namespace Prefix: | efoi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line of Credit Facility, Borrowing Capacity, Inventory Costs, Percent + References No definition available. + Details
Name: | efoi_LineOfCreditFacilityBorrowingCapacityInventoryCostsPercent
Namespace Prefix: | efoi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line of Credit Facility, Borrowing Capacity, Inventory Value, Percent + References No definition available. + Details
Name: | efoi_LineOfCreditFacilityBorrowingCapacityInventoryValuePercent
Namespace Prefix: | efoi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line of Credit Facility, Borrowing Capacity, Value Of Accounts Receivable, Percent + References No definition available. + Details
Name: | efoi_LineOfCreditFacilityBorrowingCapacityValueOfAccountsReceivablePercent
Namespace Prefix: | efoi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line Of Credit Facility, Monthly Facility Fee + References No definition available. + Details
Name: | efoi_LineOfCreditFacilityMonthlyFacilityFee
Namespace Prefix: | efoi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line Of Credit Facility, Monthly Facility Fee, Percent + References No definition available. + Details
Name: | efoi_LineOfCreditFacilityMonthlyFacilityFeePercent
Namespace Prefix: | efoi_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line Of Credit Facility, Termination Notice Period + References No definition available. + Details
Name: | efoi_LineOfCreditFacilityTerminationNoticePeriod
Namespace Prefix: | efoi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_LinesOfCreditCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + References No definition available. + Details
Name: | us-gaap_UnamortizedDebtIssuanceExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=efoi_InventoryFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=efoi_ReceivablesFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=efoi_WallStreetJournalHighestPrimeRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |