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Note 3 - Revenue Recognition (Tables) | 9 Months Ended
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Sep. 30, 2025
Notes Tables |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
Contract Assets and Liability Balances |  | September 30, 2025 |  |  | December 31, 2024 |  |  | December 31, 2023 |
Trade receivables, included in accounts receivable* |  | $ | 7,643 |  |  | $ | 14,991 |  |  | $ | 15,897 |
Contract assets, included in accounts receivable |  |  | 231 |  |  |  | 222 |  |  |  | 1,128 |
Contract liabilities, included in deferred revenue - short-term |  |  | 788 |  |  |  | 697 |  |  |  | 3,656 |
Contract liabilities, included in deferred revenue - long-term |  |  | 3,156 |  |  |  | 3,293 |  |  |  | 9,318 |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Contract revenue from customers with > one-year arrangements |  | $ | 4,759 |  |  | $ | 8,966 |  |  | $ | 9,857 |  |  | $ | 26,941 |
Contract revenue from customers with < one-year arrangements |  |  | 17,875 |  |  |  | 42,119 |  |  |  | 65,877 |  |  |  | 154,723 |
Revenue from non-contractual arrangements |  |  | 55 |  |  |  | 55 |  |  |  | 166 |  |  |  | 166 |
Total revenue |  | $ | 22,689 |  |  | $ | 51,140 |  |  | $ | 75,900 |  |  | $ | 181,830 |
|  | Three Months Ended September 30, |  |  | Nine Months Ended September 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Bill-and-hold revenue |  | $ | 10,650 |  |  | $ | 10,211 |  |  | $ | 25,085 |  |  | $ | 32,875 |
Non-bill-and-hold revenue |  |  | 12,039 |  |  |  | 40,929 |  |  |  | 50,815 |  |  |  | 148,955 |
Total revenue |  | $ | 22,689 |  |  | $ | 51,140 |  |  | $ | 75,900 |  |  | $ | 181,830 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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