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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13531-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13537-108611

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592

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

Basis of Presentation and Significant Accounting Policies (Concentration Risk) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018
Concentration Risk [Line Items]
Allowance for doubtful accounts	$ 0.2		$ 0.2
Revenue \| Sell-Through Distributors Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	79.00%	87.00%
Arrow Electronics Inc. \| Trade receivables \| Sell-Through Distributors Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	34.00%		41.00%
Weikeng Group \| Trade receivables \| Sell-Through Distributors Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	32.00%		23.00%
Third Largest Distributor \| Trade receivables \| Sell-Through Distributors Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	12.00%