Note 14 - Commitments and Contingencies (Details Textual)	9 Months Ended
Jan. 01, 2017
Warranty Term, Customer Products	1 year
Warranty Term, Standard Products	90 days

The length of the warranty term for standard products.

No definition available.

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Namespace Prefix:	exar_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration