Clearfield, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

Note 10 - Leases (Details Textual)

v3.20.1

Note 10 - Leases (Details Textual)		3 Months Ended	6 Months Ended
Note 10 - Leases (Details Textual)	Jun. 30, 2019 ft²	Mar. 31, 2020 USD ($) ft²	Mar. 31, 2020 USD ($) ft²	Feb. 12, 2020 ft²
Operating Lease, Weighted Average Discount Rate, Percent		3.48%	3.48%
Operating Lease, Payments \| $		$ 168,815	$ 336,655
Weighted Average [Member]
Lessee, Operating Lease, Term of Contract (Year)		4 years 284 days	4 years 284 days
7050 Winnetka Avenue North, Brooklyn Park, Minnesota [Member]
Area of Real Estate Property (Square Foot)		71,000	71,000
Lessee, Operating Lease, Term of Contract (Year)		10 years 62 days	10 years 62 days
Additional area of rental space (Square Foot)	14,000
Operating Lease Termination Fee \| $			$ 249,000
Tijuana, Mexico [Member]
Area of Real Estate Property (Square Foot)		46,000	46,000
Lessee, Operating Lease, Term of Contract (Year)		3 years	3 years
Tijuana, Mexico 2 [Member]
Area of Real Estate Property (Square Foot)				52,000
Lessee, Operating Lease, Term of Contract (Year)				3 years 180 days
Lessee, Operating Lease, Number of Options to Renew				2
Lessee, Operating Lease, Renewal Term (Year)				3 years

- Definition

The additional area of rental space in connection with the amendment of lease agreement.

+ References

No definition available.

+ Details

Name:	clfd_AdditionalAreaOfRentalSpace
Namespace Prefix:	clfd_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the number of options to renew an operating lease.

+ References

No definition available.

+ Details

Name:	clfd_LesseeOperatingLeaseNumberOfOptionsToRenew
Namespace Prefix:	clfd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of termination fee pursuant to the lease agreement.

+ References

No definition available.

+ Details

Name:	clfd_OperatingLeaseTerminationFee
Namespace Prefix:	clfd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918643-209977

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(1)
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 55
-Paragraph 53
-URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971

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Period Type:	instant

- Details

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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