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Note 4 - Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Revenue |  | $ 7,627 | $ 9,443 | $ 25,005 | $ 29,760
Amortization expense on acquired intangible assets |  | 1,209 | 1,173 | 3,546 | 3,445
Total cost of revenue |  | 3,181 | 3,546 | 9,767 | 10,788
Cash compensation |  | 4,875 | 10,322 | 22,281 | 30,425
Stock-based compensation |  | 3,529 | 2,548 | 8,170 | 7,376
Professional services and consultants |  | 1,969 | 2,057 | 6,811 | 5,880
Software and hardware |  | 608 | 871 | 2,146 | 2,759
Depreciation and amortization |  | 563 | 536 | 1,606 | 1,636
Other segment items (2) | [1] | 1,266 | 932 | 3,093 | 3,104
Total operating expenses |  | 12,810 | 17,266 | 44,107 | 51,180
Operating loss |  | (8,364) | (11,369) | (28,869) | (32,208)
Other income, net |  | 217 | 617 | 796 | 1,868
Provision for income taxes |  | (5) | (2) | (29) | (22)
Net loss |  | (8,152) | (10,754) | (28,102) | (30,362)
Subscription [Member] |  |  |  |  |
Revenue |  | 4,567 | 5,252 | 14,505 | 17,394
Cost of revenue | [2] | 642 | 735 | 2,101 | 2,205
Service [Member] |  |  |  |  |
Revenue |  | 3,060 | 4,191 | 10,500 | 12,366
Cost of revenue | [2] | $ 1,330 | $ 1,638 | $ 4,120 | $ 5,138
[1] | Other segment items include training and travel expenses, recruiting expenses, rent and facility expenses, bad debt expenses and other miscellaneous costs.
[2] | Cost of revenue for Subscription and Service excludes amortization expense on acquired intangible assets.

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