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 11 - Goodwill and Intangibles - Finite Lived Intangible Assets (Details)

v3.26.1

Note 11 - Goodwill and Intangibles - Finite Lived Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025
Gross carrying amount	$ 16,407	$ 15,917
Accumulated amortization	8,465	6,564
Net carrying amount	$ 7,942	$ 9,353
Customer Relationships [Member]
Useful life (Year)	15 years	15 years
Gross carrying amount	$ 3,742	$ 3,742
Accumulated amortization	2,089	1,902
Net carrying amount	$ 1,653	$ 1,840
Certification Marks [Member]
Useful life (Year)	8 years	8 years
Gross carrying amount	$ 1,068	$ 1,068
Accumulated amortization	1,068	1,017
Net carrying amount	0	51
Trademarks [Member]
Gross carrying amount	563	563
Accumulated amortization	563	537
Net carrying amount	$ 0	$ 26
Trademarks [Member] \| Minimum [Member]
Useful life (Year)	8 years	8 years
Trademarks [Member] \| Maximum [Member]
Useful life (Year)	10 years	10 years
Patents [Member]
Useful life (Year)	20 years	20 years
Gross carrying amount	$ 1,547	$ 1,443
Accumulated amortization	327	278
Net carrying amount	1,220	1,165
Software, Internally Developed [Member]
Gross carrying amount	9,487	9,101
Accumulated amortization	4,418	2,830
Net carrying amount	$ 5,069	$ 6,271
Software, Internally Developed [Member] \| Minimum [Member]
Useful life (Year)	1 year	1 year
Software, Internally Developed [Member] \| Maximum [Member]
Useful life (Year)	10 years	10 years

- Definition

Useful life of finite-lived intangible asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed.

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