Name:	lscc_RepaymentsOfLongTermDebtAcceleratedPrincipalPayments
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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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.

No definition available.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

No definition available.

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Data Type:	num:percentItemType
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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.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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