Loan and Security Agreement	12 Months Ended
Dec. 28, 2019
Debt Disclosure [Abstract]
Loan and Security Agreement	13. Loan and Security Agreement In November 2016, the Company entered into a Loan and Security Agreement (“Loan Agreement”) with Silicon Valley Bank providing for up to $15.0 million secured revolving loan facility (“Revolving Loan Facility”), with availability subject to an accounts receivable borrowing base formula. Borrowings under the Revolving Loan Facility accrue interest at a per annum rate equal to the Wall Street Journal Prime Rate as in effect from time to time, plus 1.5%. The Loan Agreement does not include any financial covenants. The Loan Agreement expired in November 2, 2019 and was amended (First Amendment to the Loan Agreement) to extend through January 1, 2020. In January 2020, the Company reduced the credit line to match its expected borrowing base, which is reflected in Second Amendment to The Loan Agreement providing for up to $8.0 million Revolving Loan Facility through January 1, 2021. As of December 28, 2019 and December 29, 2018, there were no amounts outstanding.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-URI http://asc.fasb.org/topic&trid=2208564

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