Leases (Details Narrative) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 02, 2019
Leases [Abstract]
Impacted on Retained earnings		$ 100
Operating lease assets net of accumulated amortization	$ 800
Financing lease assets net of accumulated amortization	$ 100

It represents financing lease assets net of accumulated amortization.

No definition available.

Name:	hwcc_FinancingLeaseAssetsNetOfAccumulatedAmortization
Namespace Prefix:	hwcc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant