Note 1 - Basis of Presentation (Tables)
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6 Months Ended |
Jun. 30, 2026 |
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| Notes Tables |
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| Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block] |
| | | Three Months Ended June 30, | | | Six Months Ended June 30, | |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Revenues | | | | | | | | | | | | | | | | |
| Leasing | | $ | 3,545,000 | | | $ | 3,571,000 | | | $ | 6,565,000 | | | $ | 6,562,000 | |
| Direct patient services | | | 4,885,000 | | | | 3,500,000 | | | | 8,949,000 | | | | 6,621,000 | |
| Total | | $ | 8,430,000 | | | $ | 7,071,000 | | | $ | 15,514,000 | | | $ | 13,183,000 | |
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| Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Table Text Block] |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Depreciation, amortization, and other expense | | | | | | | | | | | | | | | | |
| Leasing | | $ | 901,000 | | | $ | 960,000 | | | $ | 1,760,000 | | | $ | 1,859,000 | |
| Direct patient services | | | 445,000 | | | | 548,000 | | | | 880,000 | | | | 1,098,000 | |
| Total | | $ | 1,346,000 | | | $ | 1,508,000 | | | $ | 2,640,000 | | | $ | 2,957,000 | |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Interest expense | | | | | | | | | | | | | | | | |
| Leasing | | $ | 286,000 | | | $ | 405,000 | | | $ | 571,000 | | | $ | 803,000 | |
| Direct patient services | | | 15,000 | | | | 23,000 | | | | 32,000 | | | | 58,000 | |
| Total | | $ | 301,000 | | | $ | 428,000 | | | $ | 603,000 | | | $ | 861,000 | |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Interest income | | | | | | | | | | | | | | | | |
| Leasing | | $ | 17,000 | | | $ | 37,000 | | | $ | 50,000 | | | $ | 95,000 | |
| Direct patient services | | | 12,000 | | | | 11,000 | | | | 32,000 | | | | 27,000 | |
| Total | | $ | 29,000 | | | $ | 48,000 | | | $ | 82,000 | | | $ | 122,000 | |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Income tax expense (benefit) | | | | | | | | | | | | | | | | |
| Leasing | | $ | (4,000 | ) | | $ | (188,000 | ) | | $ | (44,000 | ) | | $ | (164,000 | ) |
| Direct patient services | | | 139,000 | | | | 167,000 | | | | 271,000 | | | | (180,000 | ) |
| Total | | $ | 135,000 | | | $ | (21,000 | ) | | $ | 227,000 | | | $ | (344,000 | ) |
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| Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block] |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| | | | | | | | | | | | | | | | | |
| Net loss attributable to American Shared Hospital Services | | | | | | | | | | | | | | | | |
| Leasing | | $ | 435,000 | | | $ | 96,000 | | | $ | 278,000 | | | $ | (207,000 | ) |
| Direct patient services | | | (949,000 | ) | | | (376,000 | ) | | | (1,404,000 | ) | | | (698,000 | ) |
| Total | | $ | (514,000 | ) | | $ | (280,000 | ) | | $ | (1,126,000 | ) | | $ | (905,000 | ) |
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| Segment Reporting, Reconciliation of Asset by Segment to Consolidated [Table Text Block] |
| | | June 30, 2026 | | | December 31, 2025 | |
| Total assets | | | | | | | | |
| Leasing | | $ | 22,507,000 | | | $ | 24,334,000 | |
| Direct patient services | | | 29,986,000 | | | | 31,145,000 | |
| Total | | $ | 52,493,000 | | | $ | 55,479,000 | |
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| Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue [Table Text Block] |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Leasing revenue | | | | | | | | | | | | | | | | |
| Domestic | | $ | 3,545,000 | | | $ | 3,571,000 | | | $ | 6,565,000 | | | $ | 6,562,000 | |
| Total | | $ | 3,545,000 | | | $ | 3,571,000 | | | $ | 6,565,000 | | | $ | 6,562,000 | |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Direct patient service revenue | | | | | | | | | | | | | | | | |
| International | | $ | 2,416,000 | | | $ | 1,568,000 | | | $ | 4,328,000 | | | $ | 2,748,000 | |
| Domestic | | | 2,469,000 | | | | 1,932,000 | | | | 4,621,000 | | | | 3,873,000 | |
| Total | | $ | 4,885,000 | | | $ | 3,500,000 | | | $ | 8,949,000 | | | $ | 6,621,000 | |
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