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Summary of Significant Accounting Policies - Schedule of Gain or Loss on Deregistration (Parentheticals) (Details)	Apr. 01, 2022
Schedule of Gain or Loss on Deregistration [Abstract]
Share of non-controlling interest	49.00%

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- References

No definition available.

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- Definition

Share of non-controlling interest rate percentage.

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No definition available.

+ Details

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Namespace Prefix:	hiho_
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Period Type:	instant