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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Commitments And Contingencies Disclosure [Line Items] |  |
Contingent milestone payments |  | $ 2,400
Additional royalty payments rate | 3.00% |
Reduction of selling, general and administrative expenses | $ 1,368 |
Supply Agreement |  |
Commitments And Contingencies Disclosure [Line Items] |  |
Purchase obligation | $ 6,453 |

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- Definition Additional royalty payments percentage. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition Commitments and Contingencies Disclosure [Line Items] + References No definition available. + Details
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- Definition Contingent milestone payments. + References No definition available. + Details
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Namespace Prefix: | lnsr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Reduction Of Selling, General And Administrative Expenses + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |