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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]  
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of presentation

The significant accounting policies of our Company, which are summarized below, are consistent with accounting principles generally accepted in the United States (“U.S. GAAP”) and reflect practices appropriate to the business in which we operate. Unless indicated otherwise, the information in the Notes to the Condensed Consolidated Financial Statements relates to our operations.
We have prepared the accompanying financial data for the three and six months ended June 30, 2025 and 2024 pursuant to the rules and regulations of the United States Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The interim results for the period ended June 30, 2025 are not necessarily indicative of the results that may be expected through December 31, 2025. All intercompany accounts and transactions are eliminated upon consolidation. The accompanying financial data and information should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2024 (“2024 Annual Report”). The Condensed Consolidated Balance Sheet as of December 31, 2024 has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by U.S. GAAP for complete financial statements.
In the opinion of management, the accompanying condensed consolidated financial statements contain all normal and recurring adjustments necessary to present fairly our Condensed Consolidated Financial Statements as of June 30, 2025 and December 31, 2024, and for the three and six months ended June 30, 2025 and 2024.
Going Concern and Nasdaq Continued Listing Requirements Compliance
Due to our financial performance as of June 30, 2025 and December 31, 2024, including net losses of $0.5 million for the six months ended June 30, 2025 and $1.6 million for the twelve months ended December 31, 2024, and total cash used in operating activities of $0.5 million for the six months ended June 30, 2025 and $1.3 million for the twelve months ended December 31, 2024, we determined that substantial doubt about our ability to continue as a going concern continues to exist at June 30, 2025. As a result of restructuring actions and initiatives, we have tailored our operating expenses to be more in line with our expected sales volumes; however, we continue to incur losses and have a substantial accumulated deficit.
Additionally, global supply chain and logistics constraints and the ongoing evolution of international trade policies are impacting our inventory purchasing strategy, as we seek to manage both shortages of available components and longer lead times in obtaining components while pursuing cost-effectiveness measures to enhance profitability. As a result, we will continue to review and pursue selected external funding sources to ensure adequate financial resources to execute across the timelines required to achieve these objectives including, but not limited to, the following:
•obtaining financing from traditional or non-traditional investment capital organizations or individuals;
•obtaining funding from the sale of our common stock or other equity or debt instruments; and
•obtaining debt financing with lending terms that more closely match our business model and capital needs.
There can be no assurance that we will obtain funding on acceptable terms, in a timely fashion, or at all. Obtaining additional funding contains risks, including:
•additional equity financing may not be available to us on satisfactory terms, particularly in light of the current price of our common stock, and any equity we are able to issue could lead to dilution for current stockholders and have rights, preferences and privileges senior to our common stock;
•loans or other debt instruments may have terms or conditions, such as interest rate, restrictive covenants, conversion features, refinancing demands, and control or revocation provisions, which are not acceptable to management or the Company’s Board of Directors (the “Board of Directors”); and
•the current environment in the capital markets and volatile interest rates, combined with our capital constraints, may prevent us from being able to obtain adequate debt financing.
Considering both quantitative and qualitative information, we continue to believe that the combination of our plans to ensure adequate external funding, timely re-organizational actions, current financial position, liquid resources, obligations due or anticipated within the next year, development and implementation of an excess inventory reduction plan, plans and initiatives in our research and development, product development and sales and marketing, and development of potential channel partnerships, if adequately executed, could provide us with an ability to finance our operations through the next twelve months and may mitigate the substantial doubt about our ability to continue as a going concern.
Nasdaq Capital Market Compliance
As of the date of this Quarterly Report, the Company believes it has maintained compliance with the Minimum Stockholders’ Equity Rule, which requires listed companies to maintain stockholders’ equity of at least $2.5 million for continued listing on the Nasdaq Capital Market. Our Common Stock is listed on the Nasdaq Capital Market, which has as one of its continued listing requirements a minimum bid price of at least $1.00 per share.
However, there can be no assurance that the Company will be able to maintain compliance with the Minimum Stockholders’ Equity Rule, Bid Price Rule, or other Nasdaq listing requirements. If the Company fails to maintain compliance with Nasdaq’s continued listing standards, the Company’s common stock will be subject to delisting from Nasdaq.
Use of estimates
The preparation of financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the amounts in our financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management’s best knowledge of current events and actions that may impact us in the future, actual results may vary from the estimates. Estimates include, but are not limited to, the expected credit loss provision, inventory obsolescence and warranty claims, the determination of the useful lives of property and equipment, valuation of long-lived assets, allowance for deferred tax assets, sales returns and stock-based compensation. In addition, estimates and assumptions associated with
the determination of the fair value of financial instruments and evaluation of long-lived assets for impairment require considerable judgment. Actual results could differ from those estimates and such differences could be material.
Revenue
Net sales include revenues from sales of products and shipping and handling charges, net of estimates for product returns. Revenue is measured at the amount of consideration we expect to receive in exchange for the transferred products. We recognize revenue at the point in time when we transfer the promised products to the customer and the customer obtains control over the products. Distributors’ obligations to us are not contingent upon the resale of our products. We recognize revenue for shipping and handling charges at the time the goods are shipped to the customer, and the costs of outbound freight are included in cost of sales. We provide for product returns based on historical return rates. While we incur costs for sales commissions to our sales employees and outside agents, we recognize commission costs concurrent with the related revenue, as the amortization period is less than one year. We do not incur any other incremental costs to obtain contracts with our customers. Our product warranties are assurance-type warranties, which promise the customer that the products are as specified in the contract. Therefore, the product warranties are not a separate performance obligation and are accounted for as described below. Sales taxes assessed by governmental authorities and collected by us are accounted for on a net basis and are excluded from net sales.
We also generate revenue from services. Service revenue primarily consists of system configuration and setup services performed in connection with customer orders. These services are typically completed at or near the time of product shipment, and revenue is therefore recognized at a point in time when the service is delivered.
The following table provides a disaggregation of product and service net sales for the periods presented (in thousands):
Three months ended
June 30,		Six months ended
June 30,
 2025202420252024
Net sales:    
Commercial products$773 $355 $976 $654 
MMM products348 1,198 761 1,732 
Setup service22 — 22 — 
Total net sales$1,143 $1,553 $1,759 $2,386 
Accounts Receivable
Our trade accounts receivable consists of amounts billed to and currently due from customers. While the majority of our customers are located in the United States, a significant portion of our accounts receivable as of June 30, 2025, is concentrated with one customer based in Taiwan, representing approximately 67% of the total. In the normal course of business, we extend unsecured credit to our customers related to the sale of our products. Credit is extended to customers based on an evaluation of the customer’s financial condition and the amounts due are stated at their estimated net realizable value. We maintain allowances for sales returns and credit loss to provide for the estimated number of account receivables that will not be collected. The Company has determined that accounts receivable fall within the scope of the CECL analysis in accordance with ASC 326. The Company decided to use the historical loss rate method of valuing its reserve for trade receivables. The reserve for credit losses is reviewed and assessed for adequacy on a quarterly basis. We take into consideration (1) any circumstances of which we are aware of a customer's inability to meet its financial obligations and (2) our judgments as to prevailing economic conditions in the industry and their impact on our customers. If circumstances change, and the financial condition of our customers is adversely affected and they are unable to meet their financial obligations, we may need to take additional allowances, which would result in an increase in our operating expense. We do not generally require collateral from our customers.

Our standard payment terms with customers are net 30 days from the date of shipment, and we do not generally offer extended payment terms to our customers, but exceptions are made in some cases for major customers or with particular orders. Accordingly, we do not adjust trade accounts receivable for the effects of financing, as we expect the period between the transfer of product to the customer and the receipt of payment from the customer to be in line with our standard payment terms.
Pursuant to ASC 606, Revenue Recognition, contract assets and contract liabilities as of the beginning and ending of the reporting periods must be disclosed. Below is the breakout of the Company’s contract assets for such periods (in thousands):

June 30, 2025December 31, 2024January 01, 2024
Gross Accounts Receivable$1,044 $819 $1,590 
Less: Reserve for Credit Losses$(84)$(15)$(20)
Net Accounts Receivable$960 $804 $1,570 
Activity related to our reserve for credit losses for the three and six months ended June 30, 2025 and 2024 was as follows (in thousands):
Allowance for credit loss as of December 31, 2024$(15)
Reduction of reserve for credit losses as of March 31, 20252 
Allowance for credit loss as of March 31, 2025(13)
Increase in reserve for credit losses as of June 30, 2025(71)
Allowance for credit loss as of June 30, 2025$(84)
Allowance for credit loss as of January 1, 2024$(20)
Reduction of reserve for credit losses as of March 31, 202411 
Allowance for credit loss as of March 31, 2024(9)
Reduction of reserve for credit losses as of June 30, 2024— 
Allowance for credit loss as of June 30, 2024$(9)
Geographic information
All of our long-lived fixed assets are located in the United States. For the three months ended June 30, 2025 and 2024, approximately 51% and 100% of sales were attributable to customers in the United States, and 49% and 0%, respectively, were attributable to customers in Asia. For the six months ended June 30, 2025 and 2024, approximately 68% and 100% of sales were attributable to customers in the United States, and 32% and 0%, respectively, were attributable to customers in Asia. The geographic location of our net sales is derived from the destination to which we ship the product.
Net loss per share
Basic loss per share is computed by dividing net loss available to common stockholders by the weighted average number of shares of common stock outstanding during the period, excluding the effects of any potentially dilutive securities. Diluted loss per share gives effect to all dilutive potential shares of common stock outstanding during the period. Dilutive potential shares of common stock consist of incremental shares upon the exercise of stock options, warrants and convertible securities, unless the effect would be anti-dilutive.
The following table presents a reconciliation of basic and diluted loss per share computations (in thousands):
Three months ended
June 30,		Six months ended
June 30,
 2025202420252024
Numerator:  
Net loss$(231)$(554)$(499)$(972)
  
Denominator:
Basic and diluted weighted average shares of common stock outstanding 5,379 4,785 5,323 4,609 
As a result of the net loss we incurred for the three and six months ended June 30, 2025 and 2024, convertible securities representing approximately 25 thousand shares of common stock were excluded from the basic loss per share calculation as their inclusion would have been anti-dilutive.
Product warranties
We warrant our products and controls for periods generally ranging from one to ten years, depending on the product type and customer application. One product was sold in 2020 with a twenty year warranty. Warranty settlement costs consist of actual amounts expensed for warranty, which are largely a result of the cost of replacement products or rework services provided to our customers. A liability for the estimated future costs under product warranties is maintained for products under warranty based on the actual claims incurred to date and the estimated nature, frequency, and costs of future claims. These estimates are inherently uncertain, and changes to our historical or projected experience may cause material changes to our warranty reserves in the future. We continuously review the assumptions related to the adequacy of our warranty reserve, including product failure rates, and make adjustments to the existing warranty liability when there are changes to these estimates or the underlying replacement product costs, or the warranty period expires.
The following table summarizes warranty activity for the periods presented (in thousands):
Three months ended
June 30,		Six months ended
June 30,
2025202420252024
Balance at beginning of period$85 $116 $118 $150 
Warranty accruals for current period sales3 1 4 2 
Adjustments to existing warranty reserves— — (34)(35)
Accrued warranty reserve at end of period$88 $117 $88 $117 
Foreign Currency Transactions
Transactions denominated in currencies other than the U.S. dollar are remeasured into U.S. dollars using exchange rates in effect at the time of the transaction. Monetary assets and liabilities denominated in foreign currencies are remeasured at period-end exchange rates. Foreign currency transaction gains and losses are recognized in earnings in the period in which they arise and are included in operating expenses, net, depending on the nature of the underlying transaction.
The Company recognized foreign currency transaction gains of approximately $45 thousand for the three and six months ended June 30, 2025, which are included as a component of selling, general and administrative expenses within the accompanying consolidated statements of operations.
Financial Instruments
Fair Value Measurements
The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value, giving the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below. We classify the inputs used to measure fair value into the following hierarchy:
Level 1Unadjusted quoted prices in active markets for identical assets or liabilities.
Level 2Unadjusted quoted prices in active markets for similar assets or liabilities, or unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or inputs other than quoted prices that are observable for the asset or liability.
Level 3Unobservable inputs for the asset or liability.
The carrying amounts of certain financial instruments including cash, accounts receivable, accounts payable, and accrued liabilities approximate fair value due to their short maturities.
A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. In determining the appropriate levels, we perform a detailed analysis of the assets and liabilities whose fair value is measured on a recurring basis. We review and reassess the fair value hierarchy classifications on a quarterly basis. Changes from one quarter to the next related to the observability of inputs in a fair value measurement may result in a reclassification between fair value hierarchy levels. There were no reclassifications for all periods presented.
Certain risks and concentrations
We have certain customers whose net sales individually represented 10% or more of our total net sales, or whose net trade accounts receivable balance individually represented 10% or more of our total net trade accounts receivable; we have certain suppliers, which individually represent 10% or more of our total purchases, or whose trade accounts payable balance individually represented 10% or more of our total trade accounts payable balance, as follows:
•For the three months ended June 30, 2025, three customers accounted for 74% of net sales, with sales to our primary distributor for the U.S. Navy accounting for approximately 13% of net sales, and sales to two commercial customers accounting for approximately 61% of net sales. For the three months ended June 30, 2024, two customers accounted for approximately 54% of net sales, all of which were attributable to our primary distributors for the U.S. Navy.
•For the six months ended June 30, 2025, four customers accounted for 76% of net sales, with sales to our primary distributor for the U.S. Navy accounting for approximately 18% of net sales, sales to a shipbuilder for the U.S. Navy accounting for approximately 12% of net sales, and sales to two commercial customers accounting for approximately 46% of net sales. For the six months ended June 30, 2024, two customers accounted for approximately 40% of net sales, all of which were attributable to our primary distributors for the U.S. Navy.
•At June 30, 2025, three customers accounted for an aggregate of approximately 98% of net trade accounts receivable, with receivables from one distributor for the U.S. Navy accounting for approximately 13%, receivables from one shipbuilder for U.S. Navy accounting for approximately 18%, and receivables from one commercial customer accounting for approximately 67% of net trade accounts receivables.
•At December 31, 2024, three customers collectively accounted for 88% of our net trade accounts receivables. This including approximately 21% from a distributor to the U.S. Navy, approximately 52% from shipbuilder to the U.S. Navy, and approximately 15% from a commercial customer account.
We require substantial amounts of purchased materials from selected vendors. With specific materials, all of our purchases are from a single vendor. The availability and costs of materials may be subject to change due to, among other things, new laws or regulations, suppliers’ allocation to other purchasers, interruptions in production by suppliers, and changes in exchange rates, tariff and worldwide price and demand levels. Our inability to obtain adequate supplies of materials for our products at favorable prices could have a material adverse effect on our business, financial position, or results of operations by decreasing our profit margins and by hindering our ability to deliver products to our customers on a timely basis. Additionally, certain vendors require advance deposits prior to the fulfillment of orders. Deposits paid on unfulfilled orders totaled $20 thousand and $356 thousand at June 30, 2025 and December 31, 2024, respectively.
We have certain vendors who individually represented 10% or more of our total expenditures, or whose net trade accounts payable balance individually represented 10% or more of our total net trade accounts payable.
Total expenditures were concentrated among a few suppliers for the three and six months ended June 30, 2025 and 2024 as follows:
Three months ended June 30,Six months ended June 30,
2025202420252024
Supplier B and C, related parties*
15.2 %32.5 %16.7 %46.4 %
Supplier D30.7 %— %14.8 %— %
Supplier E
— %— %10.6 %— %
* See Note 11 “Related Party Transactions”
At June 30, 2025 and December 31, 2024 of our trade accounts payable were concentrated among a few suppliers as follows:

As of
June 30, 2025
As of
December 31, 2024
Supplier A— %35.6 %
Supplier B and C, related parties*
86.0 %54.4 %
* See Note 11 “Related Party Transactions”
Recent Accounting Pronouncements Not Yet Adopted
In October 2023, the FASB issued ASU 2023-06, Disclosure Improvements: Codification Amendments in Response to the SEC’s Disclosure Update and Simplification Initiative. ASU 2023-06 modifies the disclosure or presentation requirements of a variety of Topics in the Codification. Certain of the amendments represent clarifications to or technical corrections of the current requirements. Because of the variety of Topics amended, a broad range of entities may be affected by one or more of those amendments. Many of the amendments allow users to more easily compare entities subject to the SEC’s existing disclosures with those entities that were not previously subject to the SEC’s requirements. Also, the amendments align the requirements in the Codification with the SEC’s regulations. For entities subject to the SEC’s existing disclosure requirements and for entities required to file or furnish financial statements with or to the SEC in preparation for the sale of or for purposes of issuing securities that are not subject to contractual restrictions on transfer, the effective date for each amendment will be the date on which the SEC’s removal of that related disclosure from Regulation S-X or Regulation S-K becomes effective, with early adoption prohibited. For all other entities, the amendments will be effective two years later. The amendments in this update should be applied prospectively. For all entities, if by June 30, 2027, the SEC has not removed the applicable requirement from Regulation S-X or Regulation S-K, the pending content of the related amendment will be removed from the Codification and will not become effective for any entity. The Company is currently evaluating the potential impact this standard will have on its consolidated financial statements and related disclosure.
Recently adopted accounting standards
On December 14, 2023, the FASB issued ASU 2023-09, Improvements to Income Tax Disclosures, which establishes new income tax disclosure requirements in addition to modifying and eliminating certain existing requirements. Under the new guidance, entities must consistently categorize and provide greater disaggregation of information in the rate reconciliation. They must also further disaggregate income taxes paid. The standard is intended to benefit investors by providing more detailed income tax disclosures that would be useful in making capital allocation decisions. The guidance applies to all entities subject to income taxes and is effective for annual periods beginning after December 15, 2024. The guidance will be applied on a prospective basis with the option to apply the standard retrospectively. The Company adopted this standard on January 1, 2025 and the adoption does not have significant impact to the Company.
Other accounting standards that have been issued by FASB that do not require adoption until a future date are not expected to have a material impact on the consolidated financial statements upon adoption. We do not discuss recent standards that are not anticipated to have an impact on or are unrelated to our consolidated financial condition, results of operations, cash flows or disclosures.