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SEGMENT REPORTING (Tables) | 9 Months Ended
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Sep. 30, 2025
SEGMENT REPORTING |
Schedule of segment revenue, significant segment expenses and other segment items to reconcile to net loss | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Dollars in Thousands | ​ | Dollars in Thousands
​ | Three Months Ended | ​ | Nine Months Ended
​ | September 30, | ​ | September 30,
​ | 2025 |  | 2024 |  | 2025 |  | 2024
Net sales | $ | 6,767 | ​ | $ | 5,209 | ​ | $ | 17,350 | ​ | $ | 13,082
Less expense (income): | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of sales |  | 3,762 | ​ |  | 2,932 | ​ |  | 9,776 | ​ |  | 8,169
Operating expenses (1) | ​ | 3,066 | ​ | ​ | 2,874 | ​ | ​ | 9,318 | ​ | ​ | 8,793
Other segment expense (income) (2) |  | 18 | ​ |  | 29 | ​ |  | (855) | ​ |  | 45
Net income (loss) | $ | (79) | ​ | $ | (626) | ​ | $ | (889) | ​ | $ | (3,925)
​ (1) Operating expenses include sales and marketing expenses, general and administrative expenses, research and development expenses and stock-based compensation. (2) Other segment items include interest income, interest expense, gain on write-off of liability and other income, including Employee Retention Credits received.

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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