Insider Trading Arrangements	9 Months Ended
Insider Trading Arrangements	Sep. 27, 2025 shares
Trading Arrangements, by Individual [Table]
Material Terms of Trading Arrangement [Text Block]	ITEM 5. OTHER INFORMATION *Rule 10b5-1 Trading Plans* On August 28, 2025, Pravin Desale, Senior Vice President of Research & Development, modified a Rule 10b5-1 trading arrangement intended to satisfy the affirmative defense condition of Rule 10b5-1(c), pursuant to which an estimated aggregate of 12,757 shares of our Common Stock may be sold. The aggregate number of shares sold may differ based on tax withholdings for vesting stock awards, and actual market achievement for performance RSUs. The duration of the trading arrangement is until August 31, 2026, or earlier if all transactions under the trading arrangement are completed.
Trading Arrangement, Securities Aggregate Available Amount	12,757
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false
Trading Arrangement Adoption Date	August 28, 2025
Trading Arrangement, Individual Name	Pravin Desale
Trading Arrangement, Individual Title	Senior Vice President of Research & Development
Rule 10b5-1 Arrangement Adopted [Flag]	true

LATTICE SEMICONDUCTOR CORP 10-Q