Note 1 - Nature of Operations	3 Months Ended
Mar. 31, 2026
Notes to Financial Statements
Nature of Operations [Text Block]	Note 1 Nature of Operations Capstone Holding Corp. (the "Company") is a holding company that operates through its consolidated subsidiaries: TotalStone, LLC ("TotalStone"), Carolina Stone Holdings, LLC ("Carolina Stone"), and Fraser Canyon Holdings Inc. ("FCHI" and together with its subsidiaries, the "CSI business"). Through these subsidiaries, the Company distributes and installs masonry and stone veneer products for residential and commercial construction across North America. On April 1, 2020, the Company obtained a controlling interest in TotalStone, a materials distribution company that distributes masonry and stone veneer products for residential and commercial construction across the United States. TotalStone operates under the trade names Instone and Northeast Masonry Distributors ("NMD"). On August 22, 2025, the Company, through its subsidiary CS Purchase Holdings LLC, acquired all the issued and outstanding membership interests (the "Holdings Membership Interests") in Carolina Stone Holdings, which owns all the issued and outstanding membership interests of Carolina Stone Distributors, LLC. Carolina Stone is a stone supplier and installer specializing in both manufactured and natural stone veneer and offering end-to-end services, including material supply, installation, and project management for residential, commercial, and multi-family projects in the Raleigh-Durham and Charlotte, North Carolina markets. On December 1, 2025, through its indirect subsidiary Instone Canada Corp., the Company acquired 100% of the outstanding equity interests of Fraser Canyon Holdings Inc. ("FCHI") and substantially all assets of Continental Stone Industries, Inc. ("CSIA"), collectively the "CSI business." FCHI is the parent company of Canadian Stone Industries Partnership, Canadian Stone Industries Inc., and CSIA, which together distribute natural and manufactured stone products wholesale from locations in Langley, British Columbia; North York, Ontario; and San Leandro, California. Effective at the closing of the CSI acquisition, the San Leandro, California operations were integrated into Instone's U.S. distribution network to consolidate West Coast operations; the CSI business today operates from two locations in British Columbia and Ontario.

Note 1 - Nature of Operations

3 Months Ended

Mar. 31, 2026

Note 1 Nature of Operations

Capstone Holding Corp. (the "Company") is a holding company that operates through its consolidated subsidiaries: TotalStone, LLC ("TotalStone"), Carolina Stone Holdings, LLC ("Carolina Stone"), and Fraser Canyon Holdings Inc. ("FCHI" and together with its subsidiaries, the "CSI business"). Through these subsidiaries, the Company distributes and installs masonry and stone veneer products for residential and commercial construction across North America.

On April 1, 2020, the Company obtained a controlling interest in TotalStone, a materials distribution company that distributes masonry and stone veneer products for residential and commercial construction across the United States. TotalStone operates under the trade names Instone and Northeast Masonry Distributors ("NMD").

On August 22, 2025, the Company, through its subsidiary CS Purchase Holdings LLC, acquired all the issued and outstanding membership interests (the "Holdings Membership Interests") in Carolina Stone Holdings, which owns all the issued and outstanding membership interests of Carolina Stone Distributors, LLC. Carolina Stone is a stone supplier and installer specializing in both manufactured and natural stone veneer and offering end-to-end services, including material supply, installation, and project management for residential, commercial, and multi-family projects in the Raleigh-Durham and Charlotte, North Carolina markets.

On December 1, 2025, through its indirect subsidiary Instone Canada Corp., the Company acquired 100% of the outstanding equity interests of Fraser Canyon Holdings Inc. ("FCHI") and substantially all assets of Continental Stone Industries, Inc. ("CSIA"), collectively the "CSI business." FCHI is the parent company of Canadian Stone Industries Partnership, Canadian Stone Industries Inc., and CSIA, which together distribute natural and manufactured stone products wholesale from locations in Langley, British Columbia; North York, Ontario; and San Leandro, California. Effective at the closing of the CSI acquisition, the San Leandro, California operations were integrated into Instone's U.S. distribution network to consolidate West Coast operations; the CSI business today operates from two locations in British Columbia and Ontario.