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v3.25.2

Subsequent Events (Details) - Subsequent event - USD ($) $ in Thousands |  | 1 Months Ended
--- | --- | ---
Jul. 01, 2025 | Jul. 31, 2025
Subsequent Event [Line Items] |  |
Lessee, operating lease, minimum notice period | 60 days | 60 days
Annual fixed lease | $ 230 |
Operating lease cost per month | $ 19 |

X
- Definition Minimum period of notice of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | lptx_LesseeOperatingLeaseMinimumNoticePeriod
Namespace Prefix: | lptx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of annual fixed lease. + References No definition available. + Details
Name: | lptx_OperatingLeaseAnnualFixedRent
Namespace Prefix: | lptx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of operating lease cost per month. + References No definition available. + Details
Name: | lptx_OperatingLeaseCostPerMonth
Namespace Prefix: | lptx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483399/855-10-50-2 + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |