v3.26.1
Note 1 - Nature of Operations - Effect of the Restatement of Previously Issued Financial Statements (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Net loss attributable to Capstone Holding Corp. stockholders (in thousands) $ (700) $ (1,328) $ (3,133) $ (3,362)
Weighted average number of common shares outstanding – basic and diluted (in shares) 5,235,240 157,610 3,405,568 157,610
Net loss per share attributable to Capstone Holding Corp. stockholders – basic and diluted (in dollars per share) $ (0.13) $ (8.43) $ (0.92) $ (21.33)
Previously Reported [Member]        
Net loss attributable to Capstone Holding Corp. stockholders (in thousands) $ (700)   $ (3,133)  
Weighted average number of common shares outstanding – basic and diluted (in shares) 5,406,305   5,406,305  
Net loss per share attributable to Capstone Holding Corp. stockholders – basic and diluted (in dollars per share) $ (0.13)   $ (0.58)  
Revision of Prior Period, Adjustment [Member]        
Net loss attributable to Capstone Holding Corp. stockholders (in thousands) $ 0   $ 0  
Weighted average number of common shares outstanding – basic and diluted (in shares) (171,065)   (2,000,737)  
Net loss per share attributable to Capstone Holding Corp. stockholders – basic and diluted (in dollars per share) $ 0   $ (0.34)