Note 5 - Business Acquisition	12 Months Ended
Jan. 02, 2022
Notes to Financial Statements
Business Combination Disclosure [Text Block]	NOTE 5-BUSINESS ACQUISITION SensiML Acquisition On January 3, 2019, the Company entered into a stock purchase agreement, or the Stock Purchase Agreement, with SensiML for the purchase of all of its issued and outstanding common stock in exchange for the Company’s common stock, or the SensiML Acquisition. SensiML has a software toolkit enabling IoT developers to quickly and easily create smart devices, transforming rich sensors into actionable event detectors. SensiML’s Analytics Toolkit is an end-to-end software suite that provides OEMs a straightforward process for developing pattern matching sensor algorithms using machine learning technology that are optimized for ultra-low power consumption. The SensiML Analytics Toolkit enables OEMs to quickly and easily leverage the power of local AI in edge, endpoint and wearable designs without the need for significant Data Science or Firmware Engineering resources. The results of operations for the Company for the fiscal year ended January 2, 2022 include operating activity for SensiML since its acquisition date of January 3, 2019. For the fiscal years ended January 2, 2022 and January 3, 2021, and December 29, 2019 revenues attributable to SensiML included in the condensed consolidated statement of operations were $184,000, $175,000 and $126,000, respectively. For the years ended January 2, 2022, January 3, 2021, and December 29, 2019 charges of $107,000, $148,000, and $148,000respectively were attributable to the amortization of purchased intangible assets, were included in the statements of operations for the respective periods. Costs related to the acquisition were $104,000 in fiscal 2019 Purchase Price Allocation Under the purchase accounting method, the total purchase price was allocated to SensiML’s net tangible and intangible assets based upon their estimated fair values as of the acquisition date. The excess purchase price over the value of the net tangible and identified intangible assets was recorded as goodwill. During the measurement period, which can be no more than one year from the date of acquisition, the Company obtained information to determine the final fair value of the net assets acquired at the acquisition date. Assets acquired and liabilities assumed are recorded based on valuations derived from estimated fair value assessments and assumptions used by the Company. The Company recorded goodwill related to the acquisition of $185,000 in fiscal 2019. Intangible assets associated with the acquisition is primarily attributable to the future technology, market presence and knowledgeable and experienced workforce. The fair value assigned to identifiable intangible assets acquired was determined using the income approach taking into account the Company’s consideration of a number of inputs, including an independent third-party analysis that was based upon estimates and assumptions provided by the Company. These estimates and assumptions were determined through established and generally accepted valuation techniques. The estimated fair value of the tangible and intangible assets acquired was allocated at SensiML’s acquisition date. Goodwill is not amortized for financial accounting purposes and is not expected to be deductible for income tax purposes. The Stock Purchase Agreement contains customary representations and warranties between the Company and SensiML, who agreed to indemnify each other for certain breaches of representations, warranties, covenants and other specified matters. Approximately $200,000 in value of the Company’s common stock of the purchase price was placed in escrow as security for post-closing working capital adjustments, which expired on January 2, 2020.

Note 5 - Business Acquisition

12 Months Ended

Jan. 02, 2022

Business Combination Disclosure [Text Block]

NOTE 5-BUSINESS ACQUISITION

SensiML Acquisition

On January 3, 2019, the Company entered into a stock purchase agreement, or the Stock Purchase Agreement, with SensiML for the purchase of all of its issued and outstanding common stock in exchange for the Company’s common stock, or the SensiML Acquisition.

SensiML has a software toolkit enabling IoT developers to quickly and easily create smart devices, transforming rich sensors into actionable event detectors.

SensiML’s Analytics Toolkit is an end-to-end software suite that provides OEMs a straightforward process for developing pattern matching sensor algorithms using machine learning technology that are optimized for ultra-low power consumption. The SensiML Analytics Toolkit enables OEMs to quickly and easily leverage the power of local AI in edge, endpoint and wearable designs without the need for significant Data Science or Firmware Engineering resources.

The results of operations for the Company for the fiscal year ended January 2, 2022 include operating activity for SensiML since its acquisition date of January 3, 2019. For the fiscal years ended January 2, 2022 and January 3, 2021, and December 29, 2019 revenues attributable to SensiML included in the condensed consolidated statement of operations were $184,000, $175,000 and $126,000, respectively.

For the years ended January 2, 2022, January 3, 2021, and December 29, 2019 charges of $107,000, $148,000, and $148,000respectively were attributable to the amortization of purchased intangible assets, were included in the statements of operations for the respective periods. Costs related to the acquisition were $104,000 in fiscal 2019

Purchase Price Allocation

Under the purchase accounting method, the total purchase price was allocated to SensiML’s net tangible and intangible assets based upon their estimated fair values as of the acquisition date. The excess purchase price over the value of the net tangible and identified intangible assets was recorded as goodwill. During the measurement period, which can be no more than one year from the date of acquisition, the Company obtained information to determine the final fair value of the net assets acquired at the acquisition date. Assets acquired and liabilities assumed are recorded based on valuations derived from estimated fair value assessments and assumptions used by the Company. The Company recorded goodwill related to the acquisition of $185,000 in fiscal 2019.

Intangible assets associated with the acquisition is primarily attributable to the future technology, market presence and knowledgeable and experienced workforce. The fair value assigned to identifiable intangible assets acquired was determined using the income approach taking into account the Company’s consideration of a number of inputs, including an independent third-party analysis that was based upon estimates and assumptions provided by the Company. These estimates and assumptions were determined through established and generally accepted valuation techniques. The estimated fair value of the tangible and intangible assets acquired was allocated at SensiML’s acquisition date. Goodwill is not amortized for financial accounting purposes and is not expected to be deductible for income tax purposes.

The Stock Purchase Agreement contains customary representations and warranties between the Company and SensiML, who agreed to indemnify each other for certain breaches of representations, warranties, covenants and other specified matters. Approximately $200,000 in value of the Company’s common stock of the purchase price was placed in escrow as security for post-closing working capital adjustments, which expired on January 2, 2020.