Clearfield, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Note 15 - Leases (Details Textual)

v3.26.1

Note 15 - Leases (Details Textual)		1 Months Ended		3 Months Ended		9 Months Ended
Note 15 - Leases (Details Textual)	Mar. 31, 2026 USD ($)	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($) ft²	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Nov. 19, 2021 ft²	Jan. 01, 2015 ft²
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability						$ 3,553,000	$ 0
Operating Lease, Weighted Average Remaining Lease Term				3 years 10 months 20 days	3 years 3 months 29 days	3 years 10 months 20 days	3 years 3 months 29 days
Operating Lease, Weighted Average Discount Rate, Percent				7.13%	7.38%	7.13%	7.38%
Operating Lease, Payments				$ 798,000	$ 835,000	$ 2,471,000	$ 2,470,000
7050 Winnetka Avenue North, Brooklyn Park, Minnesota [Member]
Area of Real Estate Property \| ft²									85,000
Lessee, Operating Lease, Term of Contract									10 years 2 months
Lessee, Operating Lease, Renewal Term			3 years
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		$ 1,337,000
Tijuana, Mexico 3 [Member]
Area of Real Estate Property \| ft²			318,000
Lessee, Operating Lease, Term of Contract			7 years
Lessee, Operating Lease, Renewal Term			5 years
Operating Lease, Monthly Payment			$ 169,000
Operating Lease, Payments, Annual Increase, Percentage			2.00%
Tijuana, Mexico 3 [Member] \| Lease Mandatory Contractual Term [Member]
Lessee, Operating Lease, Term of Contract			5 years
Brooklyn Park, MN [Member]
Area of Real Estate Property \| ft²								105,000
Lessee, Operating Lease, Term of Contract								5 years
Lessee, Operating Lease, Renewal Term	61 months							5 years
Increase (Decrease) in Operating Lease Liability	$ 3,553,000

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Amount of monthly cash outflow for operating lease payments.

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Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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