Clearfield, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

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

Note 1 - Summary of Significant Accounting Policies - Finite Lived Intangible Assets (Details)

v3.21.2

Note 1 - Summary of Significant Accounting Policies - Finite Lived Intangible Assets (Details) - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Gross carrying amount	$ 8,154,145	$ 7,789,539
Accumulated amortization	3,457,994	2,803,323
Net book value amount	$ 4,696,151	$ 4,986,216
Customer Relationships [Member]
Useful life (Year)	15 years	15 years
Gross carrying amount	$ 3,742,000	$ 3,742,000
Accumulated amortization	904,317	654,850
Net book value amount	$ 2,837,683	$ 3,087,150
Certification Marks [Member]
Useful life (Year)	8 years	8 years
Gross carrying amount	$ 1,068,000	$ 1,068,000
Accumulated amortization	483,937	350,437
Net book value amount	$ 584,063	$ 717,563
Trademarks [Member]
Useful life (Year)	8 years	8 years
Gross carrying amount	$ 563,000	$ 563,000
Accumulated amortization	255,109	184,734
Net book value amount	$ 307,891	$ 378,266
Patents [Member]
Useful life (Year)	20 years	20 years
Gross carrying amount	$ 790,384	$ 689,889
Accumulated amortization	84,660	56,257
Net book value amount	$ 705,724	$ 633,632
Patents [Member] \| Maximum [Member]
Useful life (Year)	20 years
Other Intangible Assets [Member]
Useful life (Year)	5 years	5 years
Gross carrying amount	$ 31,091	$ 31,091
Accumulated amortization	24,873	18,655
Net book value amount	6,218	12,436
Computer Software, Intangible Asset [Member]
Gross carrying amount	1,959,670	1,695,559
Accumulated amortization	1,705,098	1,538,390
Net book value amount	$ 254,572	$ 157,169
Computer Software, Intangible Asset [Member] \| Minimum [Member]
Useful life (Year)	1 year	1 year
Computer Software, Intangible Asset [Member] \| Maximum [Member]
Useful life (Year)	3 years	3 years

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Name Accounting Standards Codification
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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