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Note 5 - Accounts and Other Receivables (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] |
​ | ​ | March 31, | ​ | ​ | December 31, | ​
​ | ​ | 2026 | ​ | ​ | 2025 | ​
Accounts receivable | ​ | $ | 129 | ​ | ​ | $ | 124 | ​
Allowance for expected credit losses | ​ | ​ | (10 | ) | ​ | ​ | (10 | )
Other receivables | ​ | ​ | 70 | ​ | ​ | ​ | 80 | ​
Total | ​ | $ | 189 | ​ | ​ | $ | 194 | ​
Accounts Receivable, Allowance for Credit Loss [Table Text Block] |
​ | ​ | March 31, | ​ | ​ | December 31, | ​
​ | ​ | 2026 | ​ | ​ | 2025 | ​
Allowance for credit losses at beginning of period | ​ | $ | 10 | ​ | ​ | $ | 112 | ​
Provision for bad debt | ​ | ​ | - | ​ | ​ | ​ | 10 | ​
Accounts written off | ​ | ​ | - | ​ | ​ | ​ | (112 | )
Total | ​ | $ | 10 | ​ | ​ | $ | 10 | ​

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 + Details
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