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Accounts Receivable, Net (Details) - Schedule of accounts receivable, net - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Schedule of accounts receivable, net [Abstract]
Accounts receivable	$ 2,311	$ 973
Less: allowance for expected credit losses	(51)
Total accounts receivable, net	$ 2,260	$ 973

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- References

No definition available.

+ Details

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Namespace Prefix:	hiho_
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Balance Type:	na
Period Type:	duration

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- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(1))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Amount of allowance for credit loss on receivable, classified as other and current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Balance Type:	credit
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- Definition

Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

+ References

No definition available.

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