XML 70 R56.htm IDEA: XBRL DOCUMENT
v3.23.2

Compensatory Equity Incentive Plan and Other Equity Incentives (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Total unrecognized compensation cost | $ 776,000 |
Maximum employee can purchase | 8,000 |
Offering period | 12 months |
Number of common purcase within offering period | 4,000 |
Discount of purchase of common stock | $ 4,000 | $ 5,000
Class A Common Stock [Member] |  |
Maximum value employee can purchase | $ 25,000 |
Common stock description | The 2014 ESPP permits employees to purchase Class A common stock through payroll deductions, which may not exceed 15% of an employee’s compensation, at a price not less than 85% of the market value of the Class A common stock on specified dates (June 30 and December 31) |

X
- References No definition available. + Details
Name: | lpth_DiscountOfPurchaseOfCommonStock
Namespace Prefix: | lpth_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | lpth_MaximumNumberOfSharesEmpolyeeCanPurchase
Namespace Prefix: | lpth_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | lpth_MaximumValueEmployeeCanPurchase
Namespace Prefix: | lpth_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | lpth_NumberOfCommonPurcaseWithinOfferingPeriod
Namespace Prefix: | lpth_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | lpth_OfferingPeriod
Namespace Prefix: | lpth_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | lpth_TotalUnrecognizedCompensationCost
Namespace Prefix: | lpth_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Description of common stock conversion feature. Includes, but is not limited to, conversion price; conversion right; timing of right; terms, event or change in circumstance causing contingency to be met or adjustment to conversion price or number of shares; manner of settlement upon conversion; and method of settlement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (c) -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-6 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (d) -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-6 + Details
Name: | us-gaap_CommonStockConversionFeatures
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |