No definition available.

Name:	exar_Note15CommitmentsandContingenciesDetailsLineItems
Namespace Prefix:	exar_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The duration of the custom product warranty term.

+ References

No definition available.

+ Details

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

- Definition

The length of the warranty term for standard products.

+ References

No definition available.

+ Details

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

- Definition

The amount of liabilities recognized recorded in a transaction with the acquiree for each transaction that is recognized separately from the acquisition of assets and assumptions of liabilities in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(3)

-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to operating activities. It excludes insurance settlements classified as investing cash flows, for example, insurance settlements related to fixed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 16

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3337-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-Subparagraph ((c)(5))

-URI http://asc.fasb.org/extlink&oid=51674963&loc=d3e12565-110249

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.15(5))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_ProductWarrantyAccrual
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_StatementScenarioAxis=exar_ReturnOfCertainOlderGenerationDataCompressionProductsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=exar_iMLMember
Namespace Prefix:
Data Type:	na
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Period Type:

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=exar_WarrantiesMember
Namespace Prefix:
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Note 15 - Commitments and Contingencies (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Jul. 31, 2015	Feb. 28, 2015	Sep. 27, 2015	Mar. 29, 2015	Jun. 30, 2014	Mar. 30, 2014
Note 15 - Commitments and Contingencies (Details) [Line Items]
Warranty Term, Custom Products			12 months
Warranty Term, Standard Products			90 days
Product Warranty Accrual			$ 356	$ 282		$ 1,074
Proceeds from Insurance Settlement, Operating Activities		$ 500
Litigation Settlement, Amount	$ 1,500
Return of Certain Older Generation Data Compression Products [Member]
Note 15 - Commitments and Contingencies (Details) [Line Items]
Product Warranty Accrual						$ 1,400
iML [Member] \| Warranties [Member]
Note 15 - Commitments and Contingencies (Details) [Line Items]
Business Combination, Separately Recognized Transactions, Liabilities Recognized					$ 400