Commitments and Contingencies (Details Narrative) - Southwest Wire Rope Reporting Unit [Member] $ in Thousands	3 Months Ended
Mar. 31, 2017 USD ($)
Expected post-remediation liability	$ 100
Description of post-remediation liability	Estimates will be incurred in the next year.
Fourth Amended and Restated Loan and Security Agreement (the 2015 Loan Agreement) [Member]
Letters of credit issued	$ 600

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

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

- Definition

The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.24)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Estimated time frame for resolution of the uncertainty as to the loss for an individual site.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 10
-Subparagraph (d)(5)
-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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

- Details

Name:	us-gaap_TypeOfArrangementAxis=hwcc_FourthAmendedAndRestatedLoanAndSecurityAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: