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4.Advertising Costs

The Company expenses advertising costs as incurred. Advertising expense incurred during the three months ended June 30, 2025 and 2024 were $6 and $44, respectively. Advertising expense incurred during the six months ended June 30, 2025 and 2024 were $42 and $158, respectively. These costs are included in sales and marketing expenses in the condensed consolidated statements of operations.

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