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Note 8 - Trade Accounts Receivable - Summary of Trade Accounts Receivable (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Trade accounts receivable, current | $ 6,995 | $ 6,563
Trade accounts receivable, long-term | 90 | 80
Allowance for doubtful accounts | (637) | (151)
Trade accounts receivable, net | 6,448 | 6,492
Unpaid deferred revenue included in trade accounts receivable | $ 1,812 | $ 2,590

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