Gross margins may fluctuate due to changes in the relative proportion of domestic and international sales, the product mix of sales, introduction of new products, manufacturing variances, total unit volume changes, responses to the evolving macroeconomic and geopolitical uncertainty, conflicts in the Middle East, including tariffs and trade wars, and other factors.
Research and Development
Research and development expenses increased $0.1 million from $1.7 million to $1.8 million, primarily due to increased personnel costs associated with higher headcount.
Sales and Marketing
Sales and marketing expenses increased $0.1 million from $5.0 million to $5.1 million. The increase was primarily attributable to higher personnel-related costs resulting from increased average headcount.
General and Administrative
General and administrative expenses decreased by $0.6 million, or 16.4% from $4.1 million to $3.5 million. The decrease primarily reflects lower consulting costs, cost savings realized from the previously announced general and administrative function transfer initiative, and lower severance expense compared to the prior fiscal year.
Other Income (Expense), Net
Other expense, net, was $0.3 million for the six months ended July 4, 2026, primarily consisting of interest and amortization of loan expenses. Other expense, net, was $1.5 million for the six months ended June 28, 2025, driven primarily by the costs associated with the Lind Note payable settlement.
Income Taxes
We recorded an income tax provision of $128 thousand and $33 thousand for the six months ended July 4, 2026 and June 28, 2025, respectively.
Liquidity, Capital Resources and Management Plans
Liquidity is our ability to generate sufficient cash flows from operating activities to meet our obligations and commitments. In addition, liquidity includes the ability to obtain appropriate financing or to raise capital.
As of July 4, 2026, we had cash and cash equivalents of $4.7 million and working capital of $10.8 million compared to cash and cash equivalents of $6.0 million and working capital of $12.0 million as of January 3, 2026.
Net cash used in operating activities was $1.2 million in the six months ended July 4, 2026 compared to net cash used in operating activities of $1.5 million in the six months ended June 28, 2025. The decrease primarily reflects lower operating losses, partially offset by increased purchases of safety stock inventory.
For the six months ended July 4, 2026, net cash used in investing activities was $0.1 million, which consisted of capital expenditures. For the six months ended June 28, 2025, net cash used in investing activities was $24 thousand, which consisted of capital expenditures.
For the six months ended July 4, 2026, net cash used in financing activities was $39 thousand, primarily related to taxes paid related to net share settlement of equity awards. For the six months ended June 28, 2025, net cash from financing activities was $6.0 million. In the first fiscal quarter of 2025, we received $10 million in issuance of convertible preferred shares and convertible debt, offset by $4.0 million in early prepayment of convertible debt.
We have historically funded our operations primarily through sales of our products to customers, sales of our common stock and borrowing arrangements. As of July 4, 2026, our principal sources of liquidity consisted of cash and cash equivalents of $4.7 million. We have incurred net losses over the last several years, and as of July 4, 2026, have an accumulated deficit of approximately $94.2 million.
On March 19, 2025, the Company entered into the Novel Securities Agreement and the Novel Note Purchase Agreement with Novel. Pursuant to the Novel Securities Agreement and the Novel Note Purchase Agreement, Novel has the right to purchase additional convertible promissory notes (the “Growth Notes”) in an aggregate principal amount of $10,000,000. The Growth Notes are issuable in three installments, with one third of the aggregate principal amount issuable upon each yearly anniversary after March 19, 2025. We have not issued any Growth Notes, but may do so in the future.
We believe our existing cash and cash equivalents will be sufficient to meet our anticipated cash needs over the next 12 months. Our future capital requirements will depend on many factors, including our growth rates, the timing and extent of our spending to support research and development activities, the timing and cost of establishing additional sales and marketing capabilities, the introduction of new and enhanced products and our costs to implement new manufacturing technologies. In the event that additional financing is required from outside sources, we may not be able to raise it on terms acceptable to us or at all. Any debt financing