Fathom Holdings Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Sale of Business - Narrative (Details)

Sale of Business - Narrative (Details) $ in Thousands					11 Months Ended	12 Months Ended
Sale of Business - Narrative (Details) $ in Thousands	May 03, 2026 USD ($)	Nov. 28, 2025 USD ($)	May 03, 2025 USD ($)	May 03, 2024 USD ($)	Nov. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business						$ 7,070	$ 7,435
Gross Carrying Amount						32,777	34,282
Gain (loss) on sale of business						(922)	2,958
Net loss						20,307	21,577
Data usage
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross Carrying Amount						4,031
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Dagley Insurance Agency
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate selling price				$ 15,000
Proceeds from sale of business			$ 4,000	7,400		$ 4,000
Gain on transaction				$ 3,000
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]				Gain (loss) on sale of business
Operating loss from discontinued operation							$ 300
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| LiveBy Disposal Group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate selling price		$ 3,000
Period of technology access		5 years
Gain (loss) on sale of business		$ (900)
Net loss					$ 700
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| LiveBy Disposal Group \| Data usage
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Estimated useful life		5 years
Gross Carrying Amount		$ 4,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| LiveBy Disposal Group \| Measurement Input, Discount Rate
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Measurement input		0.155
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Forecast \| Dagley Insurance Agency
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business	$ 3,000