Note 2 - Significant Accounting Policies	6 Months Ended
Jul. 04, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2 — Significant Accounting Policies During the sixmonths period ended July 4, 2021, there were no changes in the Company's significant accounting policies from its disclosures in the Annual Report on Form 10-K for the year ended January 3, 2021, except for the new accounting standards adopted during the six months ended July 4, 2021. For a discussion of the significant accounting policies, please see the Annual Report on Form 10-K for the fiscal year ended January 3, 2021, filed with the SEC on March 23, 2021. For a discussion of the new accounting standards adopted during the six months of 2021, see “New Accounting Pronouncements” below. *Fair Value Measurements* The Company’s cash, cash equivalents and restricted cash include money market account balance of $19.0 million and $22.7 million as of July 4, 2021, and January 3, 2021, respectively. Fair value of the Company’s money market account balance with Heritage Bank equals to book value. *Restricted cash* Cash, cash equivalent and restricted cash includes an amount of $100,000 pledged as cash security related to the use of credit cards as of July 4, 2021 , and January 3, 2021. New Accounting Pronouncements *Recently adopted accounting pronouncements* In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes, which removes certain exceptions to the general principles of ASC 740, in order to reduce the cost and complexity of its application. These changes include elimination to the exceptions for (1) Intra-period tax allocation, (2) Deferred tax liabilities related to outside basis differences, and (3) Year-to-date losses in interim periods. The Company adopted this standard prospectively effective January 4, 2021, with an insignificant impact to the Unaudited Condensed Consolidated Financial Statements. **New accounting pronouncements not* yet adopted*** In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which address issues identified as a result of the complexity associated with applying generally accepted accounting principles for certain financial instruments with characteristics of liabilities and equity. This amendment is effective for public business entities that meet the definition of a Securities and Exchange Commission ("SEC") filer, excluding entities eligible to be smaller reporting companies as defined by the SEC, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. The Company is currently evaluating the potential impact on its Unaudited Condensed Consolidated Financial Statements.

Note 2 - Significant Accounting Policies

6 Months Ended

Jul. 04, 2021

Significant Accounting Policies [Text Block]

Note 2 — Significant Accounting Policies

During the sixmonths period ended July 4, 2021, there were no changes in the Company's significant accounting policies from its disclosures in the Annual Report on Form 10-K for the year ended January 3, 2021, except for the new accounting standards adopted during the six months ended July 4, 2021. For a discussion of the significant accounting policies, please see the Annual Report on Form 10-K for the fiscal year ended January 3, 2021, filed with the SEC on March 23, 2021. For a discussion of the new accounting standards adopted during the six months of 2021, see “New Accounting Pronouncements” below.

Fair Value Measurements

The Company’s cash, cash equivalents and restricted cash include money market account balance of $19.0 million and $22.7 million as of July 4, 2021, and January 3, 2021, respectively. Fair value of the Company’s money market account balance with Heritage Bank equals to book value.

Restricted cash

Cash, cash equivalent and restricted cash includes an amount of $100,000 pledged as cash security related to the use of credit cards as of July 4, 2021 , and January 3, 2021.

New Accounting Pronouncements

Recently adopted accounting pronouncements

In December 2019, the FASB issued ASU No. 2019-12, Simplifying the Accounting for Income Taxes, which removes certain exceptions to the general principles of ASC 740, in order to reduce the cost and complexity of its application. These changes include elimination to the exceptions for (1) Intra-period tax allocation, (2) Deferred tax liabilities related to outside basis differences, and (3) Year-to-date losses in interim periods. The Company adopted this standard prospectively effective January 4, 2021, with an insignificant impact to the Unaudited Condensed Consolidated Financial Statements.

New accounting pronouncements not yet adopted

In August 2020, the FASB issued ASU No. 2020-06, Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity, which address issues identified as a result of the complexity associated with applying generally accepted accounting principles for certain financial instruments with characteristics of liabilities and equity. This amendment is effective for public business entities that meet the definition of a Securities and Exchange Commission ("SEC") filer, excluding entities eligible to be smaller reporting companies as defined by the SEC, for fiscal years beginning after December 15, 2021, including interim periods within those fiscal years. The Company is currently evaluating the potential impact on its Unaudited Condensed Consolidated Financial Statements.