The minimum value of EBITDA that, if not exceeded, will automatically convert the deb instrument.

No definition available.

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Namespace Prefix:	lpth_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the increase percent of redemption amount.

+ References

No definition available.

+ Details

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- Definition

The original issue discount percent on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	lpth_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation.

+ References

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Balance Type:	credit
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- Details

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- Details

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- Details

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- Details

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- Details

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Note 13 - Loans Payable (Details Textual) $ / shares in Units, $ in Millions			1 Months Ended				10 Months Ended
	Feb. 13, 2025 USD ($)	Aug. 06, 2024 USD ($)	May 31, 2023 USD ($)	May 31, 2023 EUR (€)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2025 USD ($)	Feb. 18, 2025 USD ($) $ / shares	May 31, 2023 EUR (€)	Sep. 30, 2021 EUR (€)	Dec. 31, 2020 EUR (€)
Acquisition Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage							12.00%
Debt Instrument, Increased Redemption Amount, Percent							102.00%
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net							$ 0.5
Debt Instrument, Covenant, Minimum EBITDA								$ 4.9
Debt Instrument, Convertible, Conversion Price (in dollars per share) \| $ / shares								$ 1,000
Debt Instrument, Face Amount	$ 5.2
Proceeds from Issuance of Debt	$ 32.2
Debt Instrument, Maturity Date							Feb. 18, 2027
Acquisition Notes [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage								10.00%
Acquisition Notes [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage								12.00%
Bridge Promissory Note [Member]
Debt Instrument, Interest Rate, Stated Percentage		12.50%
Debt Instrument, Face Amount		$ 3.0
Debt Instrument, Original Issue Discount, Percent		7.00%
Proceeds from Issuance of Debt		$ 2.7
Debt Instrument, Term (Year)		1 year
2020 Equipment Loan [Member]
Debt Instrument, Face Amount					$ 0.3	$ 0.3				€ 225,000	€ 225,000
Debt Instrument, Term (Year)					52 months	60 months
2023 Equipment Loan [Member]
Debt Instrument, Interest Rate, Stated Percentage			2.84%				4.94%		2.84%
Debt Instrument, Face Amount			$ 0.3						€ 260,258
Debt Instrument, Term (Year)			48 months	48 months
Repayments of Debt			$ 0.1	€ 132,674