Note 12 - Employee Stock Plans	12 Months Ended
Jan. 03, 2021
Notes to Financial Statements
Disclosure of Employee Stock Ownership Plans [Text Block]	NOTE 12-EMPLOYEE STOCK PLANS 2009 Stock Plan The 2009 Stock Plan, or 2009 Plan, was amended and restated by the Board of Directors in January 2015, in February 2017, and in March 15, 2018 and approved by the Company’s stockholders on April 23, 2015, on April 26, 2017 and on April 25, 2018 to, among other things, reserve an additional 178,571, 107,143 and 285,714 shares of common stock, respectively, for issuance under the 2009 Plan. On April 24, 2019, 2009 Plan was replaced by 2019 Stock Plan with an extended term of ten years through March 15, 2028. The remaining balance of available shares under the 2009 Plan of 299,070 were cancelled as of April 24, 2019. 2019 Stock Plan On April 24, 2019, the Company’s Board of Directors and shareholders approved the 2019 Stock Plan, or 2019 Plan, to replace the 2009 stock Plan, or the 2009 Plan. Under the 2019 Plan, 357,143 shares of common stock are available for grants, plus any shares subject to any outstanding options or other awards granted under the Company’s 2009 Plan that expire, are forfeited, cancelled, returned to the Company for failure to satisfy vesting requirements, settled for cash or otherwise terminated without payment being made thereunder. As of January 3, 2021, approximately 319,341 shares of the Company’s common stock were reserved for issuance under the 2019 Plan. Options typically vest at a rate of 25% one year after the vesting commencement date, and one forty-eighth for each month of service thereafter. RSUs typically vest at a rate of 25% one year after the vesting commencement date, and one eighth every six months thereafter. The Company may implement different vesting schedules in the future with respect to any new equity awards. Employee Stock Purchase Plan The 2009 Employee Stock Purchase Plan, or 2009 ESPP, was adopted in March 2009. The 2009 ESPP was amended by the Board of Directors in January 2015 and in February 2017, and was approved by the Company’s stockholders on April 23, 2015 and April 26, 2017, to reserve an additional 71,429 and 107,143 shares of common stock, respectively, for issuance under the 2009 ESPP. On May 6, 2019, the Board of Directors approved the extension of the term of the 2009 ESPP to March 5, 2029, which also requires the stockholders’ ratification within 12 months of the approval by the Board of Directors. The Company plans to submit the extension of the term of the 2009 ESPP for our stockholders to ratify in the next annual general meeting. As of January 3, 2021, 341,948 shares were reserved for issuance under the 2009 ESPP. The 2009 ESPP provides for six month offering periods. Participants purchase shares through payroll deductions of up to 20% of an employee’s total compensation (maximum of 1,429 shares per offering period). The 2009 ESPP permits the Board of Directors to determine, prior to each offering period, whether participants purchase shares at: (i) 85% of the fair market value of the common stock at the end of the offering period; or (ii) 85% of the lower of the fair market value of the common stock at the beginning or the end of an offering period. The Board of Directors has determined that, until further notice, future offering periods will be made at 85% of the lower of the fair market value of the common stock at the beginning or the end of an offering period.

Note 12 - Employee Stock Plans

12 Months Ended

Jan. 03, 2021

Disclosure of Employee Stock Ownership Plans [Text Block]

NOTE 12-EMPLOYEE STOCK PLANS

2009 Stock Plan

The 2009 Stock Plan, or 2009 Plan, was amended and restated by the Board of Directors in January 2015, in February 2017, and in March 15, 2018 and approved by the Company’s stockholders on April 23, 2015, on April 26, 2017 and on April 25, 2018 to, among other things, reserve an additional 178,571, 107,143 and 285,714 shares of common stock, respectively, for issuance under the 2009 Plan. On April 24, 2019, 2009 Plan was replaced by 2019 Stock Plan with an extended term of ten years through March 15, 2028. The remaining balance of available shares under the 2009 Plan of 299,070 were cancelled as of April 24, 2019.

2019 Stock Plan

On April 24, 2019, the Company’s Board of Directors and shareholders approved the 2019 Stock Plan, or 2019 Plan, to replace the 2009 stock Plan, or the 2009 Plan. Under the 2019 Plan, 357,143 shares of common stock are available for grants, plus any shares subject to any outstanding options or other awards granted under the Company’s 2009 Plan that expire, are forfeited, cancelled, returned to the Company for failure to satisfy vesting requirements, settled for cash or otherwise terminated without payment being made thereunder. As of January 3, 2021, approximately 319,341 shares of the Company’s common stock were reserved for issuance under the 2019 Plan.

Options typically vest at a rate of 25% one year after the vesting commencement date, and one forty-eighth for each month of service thereafter. RSUs typically vest at a rate of 25% one year after the vesting commencement date, and one eighth every six months thereafter. The Company may implement different vesting schedules in the future with respect to any new equity awards.

Employee Stock Purchase Plan

The 2009 Employee Stock Purchase Plan, or 2009 ESPP, was adopted in March 2009. The 2009 ESPP was amended by the Board of Directors in January 2015 and in February 2017, and was approved by the Company’s stockholders on April 23, 2015 and April 26, 2017, to reserve an additional 71,429 and 107,143 shares of common stock, respectively, for issuance under the 2009 ESPP.

On May 6, 2019, the Board of Directors approved the extension of the term of the 2009 ESPP to March 5, 2029, which also requires the stockholders’ ratification within 12 months of the approval by the Board of Directors. The Company plans to submit the extension of the term of the 2009 ESPP for our stockholders to ratify in the next annual general meeting.

As of January 3, 2021, 341,948 shares were reserved for issuance under the 2009 ESPP. The 2009 ESPP provides for six month offering periods. Participants purchase shares through payroll deductions of up to 20% of an employee’s total compensation (maximum of 1,429 shares per offering period). The 2009 ESPP permits the Board of Directors to determine, prior to each offering period, whether participants purchase shares at: (i) 85% of the fair market value of the common stock at the end of the offering period; or (ii) 85% of the lower of the fair market value of the common stock at the beginning or the end of an offering period. The Board of Directors has determined that, until further notice, future offering periods will be made at 85% of the lower of the fair market value of the common stock at the beginning or the end of an offering period.