For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Concentration of Credit and Other Risks (Details) - Customer	3 Months Ended		12 Months Ended
	Mar. 26, 2016	Mar. 28, 2015	Dec. 26, 2015
Concentration Risk [Line Items]
Concentration risk percentage	44.70%	60.40%
Customer Concentration Risk \| Revenues \| Intel
Concentration Risk [Line Items]
Concentration risk percentage	34.30%	18.60%
Customer Concentration Risk \| Revenues \| Samsung
Concentration Risk [Line Items]
Concentration risk percentage	10.40%	13.70%
Customer Concentration Risk \| Revenues \| SK hynix
Concentration Risk [Line Items]
Concentration risk percentage		17.50%
Customer Concentration Risk \| Revenues \| Micron
Concentration Risk [Line Items]
Concentration risk percentage		10.60%
Customer Concentration Risk \| Accounts Receivable \| Major Customer 1
Concentration Risk [Line Items]
Concentration risk percentage	38.00%		29.00%
Number of customers	1		1