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

Note 13 - Subsequent Events (Details Textual)

v3.25.3
Note 13 - Subsequent Events (Details Textual) - USD ($)
Nov. 11, 2025
Nov. 20, 2025
Nov. 19, 2025
May 07, 2024
Stock Repurchase Program [Member]        
Share Repurchase Program, Authorized, Amount       $ 65,000,000
Subsequent Event [Member] | Stock Repurchase Program [Member]        
Share Repurchase Program, Authorized, Amount   $ 85,000,000 $ 65,000,000  
Clearfield Finland Oy [Member] | Subsequent Event [Member]        
Proceeds from Divestiture of Businesses and Interests in Affiliates $ 1      
Receivables Acquired from Divestiture of Businesses and Interests in Affiliates $ 5,785,000