XML 71 R56.htm IDEA: XBRL DOCUMENT v3.25.2

Summary of Significant Accounting Policies - Schedule of Exchange Rates (Details)	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Chinese Renminbi [Member] | Consolidated statement of operations [Member]
Schedule of Exchange Rates [Line Items]
Currency exchange value	7.14	7.15	6.83
Chinese Renminbi [Member] | Balance sheet [Member]
Schedule of Exchange Rates [Line Items]
Currency exchange value	7.27	7.18
Myanmar Kyat [Member] | Consolidated statement of operations [Member]
Schedule of Exchange Rates [Line Items]
Currency exchange value	2,510	2,103	1,995
Myanmar Kyat [Member] | Balance sheet [Member]
Schedule of Exchange Rates [Line Items]
Currency exchange value	2,103	3,536

X

- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479424/830-30-S99-1

+ Details

Name:	us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_IntercompanyForeignCurrencyBalanceLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_StatementGeographicalAxis=currency_CNY
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=hiho_ConsolidatedStatementOfOperationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=hiho_BalanceSheetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=currency_MMK
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: