Note 1 - Basis of Presentation (Tables)
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3 Months Ended |
Mar. 31, 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 March 31, | |
| | | 2026 | | | 2025 | |
| Revenues | | | | | | | | |
| Leasing | | $ | 3,020,000 | | | $ | 2,991,000 | |
| Direct patient services | | | 4,064,000 | | | | 3,121,000 | |
| Total | | $ | 7,084,000 | | | $ | 6,112,000 | |
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| Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Table Text Block] |
| | | 2026 | | | 2025 | |
| Depreciation, amortization, and other expense | | | | | | | | |
| Leasing | | $ | 859,000 | | | $ | 899,000 | |
| Direct patient services | | | 435,000 | | | | 550,000 | |
| Total | | $ | 1,294,000 | | | $ | 1,449,000 | |
| | | 2026 | | | 2025 | |
| Interest expense | | | | | | | | |
| Leasing | | $ | 285,000 | | | $ | 398,000 | |
| Direct patient services | | | 17,000 | | | | 35,000 | |
| Total | | $ | 302,000 | | | $ | 433,000 | |
| | | 2026 | | | 2025 | |
| Interest income | | | | | | | | |
| Leasing | | $ | 33,000 | | | $ | 58,000 | |
| Direct patient services | | | 20,000 | | | | 16,000 | |
| Total | | $ | 53,000 | | | $ | 74,000 | |
| | | 2026 | | | 2025 | |
| Income tax expense (benefit) | | | | | | | | |
| Leasing | | $ | (40,000 | ) | | $ | (257,000 | ) |
| Direct patient services | | | 132,000 | | | | (66,000 | ) |
| Total | | $ | 92,000 | | | $ | (323,000 | ) |
|
| Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block] |
| | | 2026 | | | 2025 | |
| | | | | | | | | |
| Net loss attributable to American Shared Hospital Services | | | | | | | | |
| Leasing | | $ | (156,000 | ) | | $ | (303,000 | ) |
| Direct patient services | | | (456,000 | ) | | | (322,000 | ) |
| Total | | $ | (612,000 | ) | | $ | (625,000 | ) |
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| Segment Reporting, Reconciliation of Asset by Segment to Consolidated [Table Text Block] |
| | | March 31, | | | December 31, | |
| | | 2026 | | | 2025 | |
| Total assets | | | | | | | | |
| Leasing | | $ | 23,821,000 | | | $ | 24,334,000 | |
| Direct patient services | | | 30,904,000 | | | | 31,145,000 | |
| Total | | $ | 54,725,000 | | | $ | 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 | |
| Leasing revenue | | | | | | | | |
| Domestic | | $ | 3,020,000 | | | $ | 2,991,000 | |
| Total | | $ | 3,020,000 | | | $ | 2,991,000 | |
| | | 2026 | | | 2025 | |
| Direct patient service revenue | | | | | | | | |
| International | | $ | 1,912,000 | | | $ | 1,181,000 | |
| Domestic | | | 2,152,000 | | | | 1,940,000 | |
| Total | | $ | 4,064,000 | | | $ | 3,121,000 | |
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