Note 10 - Capital Stock	6 Months Ended
Jun. 29, 2025
Notes to Financial Statements
Disclosure of Employee Stock Ownership Plans [Text Block]	Note 10 — Capital Stock *Issuance of Common Stock* On March 6, 2025, the Company entered into Common Stock Purchase Agreements with certain institutional investors for the sale of an aggregate of 256,200 shares of common stock, par value $0.001, in a registered direct offering, resulting in net cash proceeds of approximately $1.5 million. Issuance costs related to the offering were $20 thousand. The purchase price for each share of common stock was $5.93. On February 25, 2025, the Company entered into an At Market Issuance Sales Agreement (the "Sales Agreement") with Needham & Company, LLC (the "Agent"), pursuant to which the Company may offer and sell, from time to time, through the Agent, as sales agent, shares of the Company's common stock, par value $0.001 per share, having an aggregate offering price of up to $20,000,000 (the "ATM Offering"). The Company intends to use the net proceeds from the ATM Offering for general corporate purposes, which may include, but is not limited to, working capital, licensing or acquiring intellectual property or technologies to incorporate in the Company's products, capital expenditures, to fund possible investments in and acquisitions of complementary businesses, partnerships, or minority investments, or to repay debt. As of June 29, 2025, the Company sold 678,275 shares under the ATM offering, resulting in net cash proceeds of approximately $4.1 million. Issuance costs related to the offering were $157 thousand. On March 13, 2024, the Company entered into common stock purchase agreements with certain institutional investors and their affiliated entities for the sale of an aggregate of 222,500 shares of common stock, par value $0.001, in a registered direct offering, resulting in net cash proceeds of approximately $3.5 million. The purchase price for each share of common stock was $16.00. The per share purchase price reflects a zero discount based upon the 10-day volume weighted average price on the day the pricing was agreed. Issuance costs related to the offering were $24 thousand. On August 17, 2022, the Company filed a Registration Statement on Form S-3 (File No. 333-266942) with the SEC, under which it may sell, from time-to-time common stock, preferred stock, depositary shares, warrants, debt securities, and units, individually or as units comprised of one or more of the other securities or a combination thereof. The Company's registration statement became effective on August 26, 2022.

Note 10 - Capital Stock

6 Months Ended

Jun. 29, 2025

Disclosure of Employee Stock Ownership Plans [Text Block]

Note 10 — Capital Stock

Issuance of Common Stock

On March 6, 2025, the Company entered into Common Stock Purchase Agreements with certain institutional investors for the sale of an aggregate of 256,200 shares of common stock, par value $0.001, in a registered direct offering, resulting in net cash proceeds of approximately $1.5 million. Issuance costs related to the offering were $20 thousand. The purchase price for each share of common stock was $5.93.

On February 25, 2025, the Company entered into an At Market Issuance Sales Agreement (the "Sales Agreement") with Needham & Company, LLC (the "Agent"), pursuant to which the Company may offer and sell, from time to time, through the Agent, as sales agent, shares of the Company's common stock, par value $0.001 per share, having an aggregate offering price of up to $20,000,000 (the "ATM Offering"). The Company intends to use the net proceeds from the ATM Offering for general corporate purposes, which may include, but is not limited to, working capital, licensing or acquiring intellectual property or technologies to incorporate in the Company's products, capital expenditures, to fund possible investments in and acquisitions of complementary businesses, partnerships, or minority investments, or to repay debt. As of June 29, 2025, the Company sold 678,275 shares under the ATM offering, resulting in net cash proceeds of approximately $4.1 million. Issuance costs related to the offering were $157 thousand.

On March 13, 2024, the Company entered into common stock purchase agreements with certain institutional investors and their affiliated entities for the sale of an aggregate of 222,500 shares of common stock, par value $0.001, in a registered direct offering, resulting in net cash proceeds of approximately $3.5 million. The purchase price for each share of common stock was $16.00. The per share purchase price reflects a zero discount based upon the 10-day volume weighted average price on the day the pricing was agreed. Issuance costs related to the offering were $24 thousand.

On August 17, 2022, the Company filed a Registration Statement on Form S-3 (File No. 333-266942) with the SEC, under which it may sell, from time-to-time common stock, preferred stock, depositary shares, warrants, debt securities, and units, individually or as units comprised of one or more of the other securities or a combination thereof. The Company's registration statement became effective on August 26, 2022.