| Segment Reporting [Table Text Block] |
| | | Three Months Ended March 31, | | | Three Months Ended March 31, | |
| | | 2026 | | | 2025 | |
| | | Fluent | | | Total | | | Fluent | | | Total | |
| Revenue(1): | | | | | | | | | | | | | | | | |
| United States | | $ | 25,884 | | | | | | | $ | 35,905 | | | | | |
| International | | | 16,941 | | | | | | | | 17,916 | | | | | |
| Total segment revenue | | $ | 42,825 | | | | | | | $ | 53,821 | | | | | |
| | | | | | | | | | | | | | | | | |
| Reconciliation of revenue | | | | | | | | | | | | | | | | |
| Other revenue | | | | | | | 2,027 | | | | | | | | 1,389 | |
| Total revenue | | | | | | $ | 44,852 | | | | | | | $ | 55,210 | |
| | | | | | | | | | | | | | | | | |
| Costs of revenue | | | | | | | | | | | | | | | | |
| Cost of revenue (exclusive of depreciation and amortization) | | | 34,464 | | | | | | | | 43,732 | | | | | |
| | | | | | | | | | | | | | | | | |
| Costs and expenses: | | | | | | | | | | | | | | | | |
| Salaries and benefits | | | 7,566 | | | | | | | | 7,689 | | | | | |
| Professional fees | | | 1,545 | | | | | | | | 2,159 | | | | | |
| IT and software | | | 1,056 | | | | | | | | 1,186 | | | | | |
| Other segment items(2) | | | 451 | | | | | | | | 3,333 | | | | | |
| Segment EBITDA | | $ | (2,257 | ) | | | | | | $ | (4,278 | ) | | | | |
| | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | |
| Reconciliation of Segment EBITDA to loss before income taxes | | | | | | | | | | | | | | | | |
| Segment EBITDA (from above) | | | | | | $ | (2,257 | ) | | | | | | $ | (4,278 | ) |
| Plus: Unallocated revenue | | | | | | | 2,027 | | | | | | | | 1,389 | |
| Less: | | | | | | | | | | | | | | | | |
| Unallocated cost of revenue (exclusive of depreciation and amortization) | | | | | | | 349 | | | | | | | | 43 | |
| Unallocated salaries and benefits | | | | | | | 1,062 | | | | | | | | 1,117 | |
| Unallocated professional fees | | | | | | | 183 | | | | | | | | 82 | |
| Unallocated IT and software | | | | | | | 57 | | | | | | | | 92 | |
| Unallocated other operating items(2) | | | | | | | 347 | | | | | | | | 392 | |
| Depreciation and amortization | | | | | | | 1,681 | | | | | | | | 2,461 | |
| Interest expense, net | | | | | | | 605 | | | | | | | | 880 | |
| Fair value adjustment of Convertible Notes, with related parties | | | | | | | 837 | | | | | | | | 80 | |
| Loss before income taxes | | | | | | $ | (5,351 | ) | | | | | | $ | (8,036 | ) |
| | | March 31, | | | December 31, | |
| | | 2026 | | | 2025 | |
| Total assets: | | | | | | | | |
| Fluent | | $ | 63,471 | | | $ | 79,570 | |
| All Other | | | 8,800 | | | | 9,563 | |
| Total assets | | $ | 72,271 | | | $ | 89,133 | |
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