$HIHO
Highway Holdings Ltd Stock $hiho

$hiho Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 20-F Financial Statement

#000121390024061773 Filed on July 16, 2024

Income Statement

Concept	2024 Q1	2024	2023 Q1
Revenue		$6.321M	$1.700M
YoY Change		-38.28%	-43.48%
Cost Of Revenue		$4.613M	$1.430M
YoY Change		-35.04%	-32.52%
Gross Profit		$1.708M	$260.0K
YoY Change		-45.62%	-70.75%
Gross Profit Margin		27.02%	15.29%
Selling, General & Admin		$2.477M	$1.490M
YoY Change		-31.54%	41.23%
% of Gross Profit		145.02%	573.08%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization		$159.0K
YoY Change		-23.92%
% of Gross Profit		9.31%
Operating Expenses		$2.477M	$1.490M
YoY Change		-31.54%	41.23%
Operating Profit		-$1.631M	-$1.230M
YoY Change		241.93%	640.96%
Interest Expense			$60.00K
YoY Change			-3100.0%
% of Operating Profit
Other Income/Expense, Net		$492.0K	$30.00K
YoY Change		200.0%	-3100.0%
Pretax Income		-$1.139M	-$1.130M
YoY Change		263.9%	568.64%
Income Tax		-$161.0K	-$10.00K
% Of Pretax Income
Net Earnings		-$959.0K	-$1.130M
YoY Change		226.19%	206.23%
Net Earnings / Revenue		-15.17%	-66.47%
Basic Earnings Per Share		-$0.22
Diluted Earnings Per Share		-$0.22	-$0.27
COMMON SHARES
Basic Shares Outstanding	4.402M shares	4.373M shares	4.087M shares
Diluted Shares Outstanding		4.373M shares

Balance Sheet

Concept	2024 Q1	2023 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments		$6.950M
YoY Change		15.64%
Cash & Equivalents	$6.601M	$6.952M
Short-Term Investments
Other Short-Term Assets		$410.0K
YoY Change		-75.81%
Inventory	$1.566M	$1.413M
Prepaid Expenses	$116.0K	$141.0K
Receivables	$1.253M	$1.886M
Other Receivables		$1.886M
Total Short-Term Assets	$9.646M	$10.66M
YoY Change	-9.51%	-13.49%
LONG-TERM ASSETS
Property, Plant & Equipment		$401.0K
YoY Change		-83.58%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets		$210.0K
YoY Change
Total Long-Term Assets	$1.672M	$3.223M
YoY Change	-48.12%	27.04%
TOTAL ASSETS
Total Short-Term Assets	$9.646M	$10.66M
Total Long-Term Assets	$1.672M	$3.223M
Total Assets	$11.32M	$13.88M
YoY Change	-18.48%	-6.57%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$935.0K	$928.0K
YoY Change	0.75%	12.08%
Accrued Expenses		$2.560M
YoY Change		-27.52%
Deferred Revenue
YoY Change
Short-Term Debt		$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$3.837M	$4.061M
YoY Change	-5.52%	-21.63%
LONG-TERM LIABILITIES
Long-Term Debt		$0.00
YoY Change
Other Long-Term Liabilities		$1.500M
YoY Change		459.7%
Total Long-Term Liabilities		$1.500M
YoY Change		459.7%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.837M	$4.061M
Total Long-Term Liabilities		$1.500M
Total Liabilities	$4.680M	$5.667M
YoY Change	-17.42%	1.38%
SHAREHOLDERS EQUITY
Retained Earnings	-$5.015M	-$3.396M
YoY Change	47.67%	48.69%
Common Stock	$44.00K	$41.00K
YoY Change	7.32%	2.5%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$6.645M	$8.204M
YoY Change
Total Liabilities & Shareholders Equity	$11.32M	$13.88M
YoY Change	-18.48%	-6.57%

Cashflow Statement

Concept	2024	2023 Q1
OPERATING ACTIVITIES
Net Income	-$959.0K	-$1.130M
YoY Change	226.19%	206.23%
Depreciation, Depletion And Amortization	$159.0K
YoY Change	-23.92%
Cash From Operating Activities	$415.0K
YoY Change	-48.7%
INVESTING ACTIVITIES
Capital Expenditures	$118.0K
YoY Change	28.26%
Acquisitions
YoY Change
Other Investing Activities
YoY Change
Cash From Investing Activities	-$102.0K
YoY Change	-110.29%
FINANCING ACTIVITIES
Cash Dividend Paid	$616.0K
YoY Change	-39.55%
Common Stock Issuance & Retirement, Net	$0.00
YoY Change	-100.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-$557.0K
YoY Change	-39.46%
NET CHANGE
Cash From Operating Activities	$415.0K
Cash From Investing Activities	-$102.0K
Cash From Financing Activities	-$557.0K
Net Change In Cash	-$244.0K
YoY Change	-127.73%
FREE CASH FLOW
Cash From Operating Activities	$415.0K
Capital Expenditures	$118.0K
Free Cash Flow	$297.0K
YoY Change	-58.58%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2024	dei	Document Type DocumentType	20-F
CY2024	dei	Document Registration Statement DocumentRegistrationStatement	false
CY2024	dei	Document Annual Report DocumentAnnualReport	true
CY2024	dei	Document Period End Date DocumentPeriodEndDate	2024-03-31
CY2024	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
CY2024	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
CY2024	dei	Document Transition Report DocumentTransitionReport	false
CY2024	dei	Document Shell Company Report DocumentShellCompanyReport	false
CY2024	dei	Entity File Number EntityFileNumber	001-38490
CY2024	dei	Entity Registrant Name EntityRegistrantName	HIGHWAY HOLDINGS LIMITED
CY2024	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	D8
CY2024	dei	Entity Address Address Line1 EntityAddressAddressLine1	Suite 1801
CY2024	dei	Entity Address Address Line2 EntityAddressAddressLine2	Level 18
CY2024	dei	Entity Address Address Line3 EntityAddressAddressLine3	Landmark North 39 Lung Sum AvenueSheung Shui
CY2024	dei	Entity Address City Or Town EntityAddressCityOrTown	New Territories
CY2024	dei	Entity Address Country EntityAddressCountry	HK
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	4401825	shares
CY2024	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2024	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2024	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2024	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2024	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2024	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2024	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2024	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2024	dei	Document Accounting Standard DocumentAccountingStandard	U.S. GAAP
CY2024	dei	Entity Shell Company EntityShellCompany	false
CY2024	dei	Auditor Name AuditorName	ARK Pro CPA & Co
CY2024	dei	Auditor Location AuditorLocation	Hong Kong, China
CY2024	dei	Auditor Firm AuditorFirmId	3299
CY2022	us-gaap	Revenues Revenues	12365000	usd
CY2023	us-gaap	Revenues Revenues	10242000	usd
CY2024	us-gaap	Revenues Revenues	6321000	usd
CY2022	us-gaap	Cost Of Revenue CostOfRevenue	8595000	usd
CY2023	us-gaap	Cost Of Revenue CostOfRevenue	7101000	usd
CY2024	us-gaap	Cost Of Revenue CostOfRevenue	4613000	usd
CY2022	us-gaap	Gross Profit GrossProfit	3770000	usd
CY2023	us-gaap	Gross Profit GrossProfit	3141000	usd
CY2024	us-gaap	Gross Profit GrossProfit	1708000	usd
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3203000	usd
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	3618000	usd
CY2024	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2477000	usd
CY2024	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	335000	usd
CY2024	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	527000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	567000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	-477000	usd
CY2024	us-gaap	Operating Income Loss OperatingIncomeLoss	-1631000	usd
CY2022	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-24000	usd
CY2023	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	32000	usd
CY2024	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	198000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	11000	usd
CY2023	us-gaap	Investment Income Interest InvestmentIncomeInterest	87000	usd
CY2024	us-gaap	Investment Income Interest InvestmentIncomeInterest	248000	usd
CY2023	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	38000	usd
CY2024	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	30000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	14000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	7000	usd
CY2024	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	16000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	164000	usd
CY2024	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	492000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	568000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-313000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1139000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	101000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-161000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	467000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	-293000	usd
CY2024	us-gaap	Profit Loss ProfitLoss	-978000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	24000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	1000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-19000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	443000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-294000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	-959000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.22
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.22
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4033346	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4070524	shares
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4373236	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4187731	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4070524	shares
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4373236	shares
CY2022	us-gaap	Profit Loss ProfitLoss	467000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	-293000	usd
CY2024	us-gaap	Profit Loss ProfitLoss	-978000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-392000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-130000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-57000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	75000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-423000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-1035000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-17000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	12000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-19000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	92000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-435000	usd
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1016000	usd
CY2023Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6952000	usd
CY2024Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6601000	usd
CY2023Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1886000	usd
CY2024Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1253000	usd
CY2023Q1	us-gaap	Inventory Net InventoryNet	1413000	usd
CY2024Q1	us-gaap	Inventory Net InventoryNet	1566000	usd
CY2023Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	406000	usd
CY2024Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	226000	usd
CY2023Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	3000	usd
CY2023Q1	us-gaap	Assets Current AssetsCurrent	10660000	usd
CY2024Q1	us-gaap	Assets Current AssetsCurrent	9646000	usd
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	401000	usd
CY2023Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2514000	usd
CY2024Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1375000	usd
CY2023Q1	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	213000	usd
CY2024Q1	us-gaap	Deposits Assets Noncurrent DepositsAssetsNoncurrent	202000	usd
CY2023Q1	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	95000	usd
CY2024Q1	us-gaap	Notes And Loans Receivable Net Noncurrent NotesAndLoansReceivableNetNoncurrent	95000	usd
CY2023Q1	us-gaap	Assets Assets	13883000	usd
CY2024Q1	us-gaap	Assets Assets	11318000	usd
CY2023Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	928000	usd
CY2024Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	935000	usd
CY2023Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	573000	usd
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	588000	usd
CY2023Q1	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	1991000	usd
CY2024Q1	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	1789000	usd
CY2023Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	568000	usd
CY2024Q1	us-gaap	Taxes Payable Current TaxesPayableCurrent	480000	usd
CY2023Q1	us-gaap	Dividends Payable Current DividendsPayableCurrent	1000	usd
CY2024Q1	us-gaap	Dividends Payable Current DividendsPayableCurrent	45000	usd
CY2023Q1	us-gaap	Liabilities Current LiabilitiesCurrent	4061000	usd
CY2024Q1	us-gaap	Liabilities Current LiabilitiesCurrent	3837000	usd
CY2023Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1482000	usd
CY2024Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	803000	usd
CY2023Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	107000	usd
CY2023Q1	us-gaap	Accounts Payable And Accrued Liabilities Noncurrent AccountsPayableAndAccruedLiabilitiesNoncurrent	17000	usd
CY2024Q1	us-gaap	Accounts Payable And Accrued Liabilities Noncurrent AccountsPayableAndAccruedLiabilitiesNoncurrent	40000	usd
CY2023Q1	us-gaap	Liabilities Liabilities	5667000	usd
CY2024Q1	us-gaap	Liabilities Liabilities	4680000	usd
CY2023Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2024Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2023Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000	shares
CY2024Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	20000	shares
CY2023Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2024Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2023Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2024Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2023Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4086825	shares
CY2023Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4086825	shares
CY2024Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	4401825	shares
CY2024Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	4401825	shares
CY2023Q1	us-gaap	Common Stock Value CommonStockValue	41000	usd
CY2024Q1	us-gaap	Common Stock Value CommonStockValue	44000	usd
CY2023Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	12003000	usd
CY2024Q1	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	12117000	usd
CY2023Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-3396000	usd
CY2024Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-5015000	usd
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-444000	usd
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-501000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	8204000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	6645000	usd
CY2023Q1	us-gaap	Minority Interest MinorityInterest	12000	usd
CY2024Q1	us-gaap	Minority Interest MinorityInterest	-7000	usd
CY2023Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8216000	usd
CY2024Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6638000	usd
CY2023Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13883000	usd
CY2024Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	11318000	usd
CY2021Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9773000	usd
CY2022	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	20000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	87000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	467000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.17
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	686000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-392000	usd
CY2022Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9269000	usd
CY2023	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	99000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	89000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	-293000	usd
CY2023	us-gaap	Stock Issued During Period Value Other StockIssuedDuringPeriodValueOther	0	usd
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.2
CY2023	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	818000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-130000	usd
CY2023Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8216000	usd
CY2024	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	59000	usd
CY2024	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	58000	usd
CY2024	us-gaap	Profit Loss ProfitLoss	-978000	usd
CY2024	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.15
CY2024	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	660000	usd
CY2024	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-57000	usd
CY2024Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	6638000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	467000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	-293000	usd
CY2024	us-gaap	Profit Loss ProfitLoss	-978000	usd
CY2022	us-gaap	Depreciation Depreciation	162000	usd
CY2023	us-gaap	Depreciation Depreciation	209000	usd
CY2024	us-gaap	Depreciation Depreciation	159000	usd
CY2022	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	935000	usd
CY2023	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	932000	usd
CY2024	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	599000	usd
CY2022	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	52000	usd
CY2023	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	504000	usd
CY2024	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	-513000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	89000	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	67000	usd
CY2024	us-gaap	Inventory Write Down InventoryWriteDown	86000	usd
CY2024	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse	335000	usd
CY2024	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss	527000	usd
CY2022	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	14000	usd
CY2023	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	7000	usd
CY2024	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	16000	usd
CY2022	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	87000	usd
CY2023	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	89000	usd
CY2024	us-gaap	Employee Benefits And Share Based Compensation EmployeeBenefitsAndShareBasedCompensation	58000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1346000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	145000	usd
CY2024	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1133000	usd
CY2022	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	435000	usd
CY2023	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	12000	usd
CY2024	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	107000	usd
CY2022	us-gaap	Increase Decrease In Finished Goods And Work In Process Inventories IncreaseDecreaseInFinishedGoodsAndWorkInProcessInventories	167000	usd
CY2023	us-gaap	Increase Decrease In Finished Goods And Work In Process Inventories IncreaseDecreaseInFinishedGoodsAndWorkInProcessInventories	-794000	usd
CY2024	us-gaap	Increase Decrease In Finished Goods And Work In Process Inventories IncreaseDecreaseInFinishedGoodsAndWorkInProcessInventories	272000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	276000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-93000	usd
CY2024	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-46000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	153000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	148000	usd
CY2024	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	36000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	190000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-461000	usd
CY2024	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-118000	usd
CY2022	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-871000	usd
CY2023	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-888000	usd
CY2024	us-gaap	Increase Decrease In Operating Lease Liability IncreaseDecreaseInOperatingLeaseLiability	-527000	usd
CY2022	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	541000	usd
CY2023	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-11000	usd
CY2024	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-59000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	7000	usd
CY2023	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-4000	usd
CY2024	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-3000	usd
CY2023	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	17000	usd
CY2024	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities	23000	usd
CY2022	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	-276000	usd
CY2023	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets	231000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-164000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	809000	usd
CY2024	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	415000	usd
CY2022	hiho	Placement Withdrawal Of Time Deposits PlacementWithdrawalOfTimeDeposits	-1075000	usd
CY2023	hiho	Placement Withdrawal Of Time Deposits PlacementWithdrawalOfTimeDeposits	1075000	usd
CY2023	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries	0	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	134000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	92000	usd
CY2024	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	118000	usd
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	14000	usd
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8000	usd
CY2024	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	16000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1195000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	991000	usd
CY2024	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-102000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1000	usd
CY2024	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	20000	usd
CY2023	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	98000	usd
CY2024	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	59000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	569000	usd
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	1019000	usd
CY2024	us-gaap	Payments Of Dividends PaymentsOfDividends	616000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-549000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-920000	usd
CY2024	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-557000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-1908000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	880000	usd
CY2024	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-244000	usd
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	7757000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6010000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6952000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	161000	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	62000	usd
CY2024	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-107000	usd
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6010000	usd
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6952000	usd
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6601000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1000	usd
CY2024	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3000	usd
CY2024	us-gaap	Use Of Estimates UseOfEstimates	<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(b) Use of estimates</b> - The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management of the Group to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The Company’s management based on their estimates on historical experience and various other factors believed to be reasonable under the circumstances, the results of which form the basis for making judgements about the carrying value of assets and liabilities that are not readily apparent from other sources. Significant accounting estimates reflected in the Group’s consolidated financial statements included revenue recognition, valuation of goodwill, provision for credit losses of accounts receivable, loan receivable valuation assessment, inventories impairment assessment, long-lived assets and right-of-use (“ROU”) assets impairment assessment, valuation of stock-based compensation, valuation allowance for deferred tax assets, valuation of retirement and other post-retirement benefits and valuation of non-controlling interests of the subsidiaries at acquisition dates. Actual results could differ from those estimates.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: 0in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The trade controversies between China and the United States and the political unrest in Myanmar have created and may continue to create significant uncertainty in macroeconomic conditions, which may cause further business slowdowns and adversely impact the Group’s results of operations.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-indent: -0.5in"> </p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(b) Use of estimates </b>- continued - As a result, during the year ended March 31, 2024, the Group faced uncertainties around its estimates of revenue recognition, revenue collectability, accounts receivable credit losses, impairment of inventories, impairment of long-lived assets and ROU assets, valuation allowance for deferred tax assets, valuation of retirement and other post-retirement benefits and valuation of stock-based compensation. The Group expects uncertainties around its key accounting estimates to continue to evolve depending on the duration and degree of impact associated with the trade controversies between China and the United States and the political unrest in Myanmar. Its estimates may change as new events occur and additional information emerges, and such changes are recognized or disclosed in its consolidated financial statements.</span></p>
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	43000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	554000	usd
CY2024	us-gaap	Asset Impairment Charges AssetImpairmentCharges	335000	usd
CY2024	hiho	Writedown Of Operating Lease Right Of Use Assets WritedownOfOperatingLeaseRightOfUseAssets	527000	usd
CY2024	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt"><b>(l) Concentration of credit risk</b> - Financial instruments that potentially expose the Group to the concentration of credit risk consist primarily of cash and cash equivalents, accounts receivable, loan receivable, other receivables and prepayments. The Group places its cash and cash equivalents with financial institutions with credit ratings and quality where the Group considers acceptable.</span></p><p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0pt 0pt 0.5in"><span style="font-family: Times New Roman, Times, Serif; font-size: 10pt">The risks with respect to accounts receivables are mitigated by credit evaluations performed on the customers or debtors and ongoing monitoring of outstanding balances.</span></p>
CY2024	hiho	Subcontracting Income SubcontractingIncome	818000	usd
CY2022	us-gaap	Revenues Revenues	12365000	usd
CY2023	us-gaap	Revenues Revenues	10242000	usd
CY2024	us-gaap	Revenues Revenues	6321000	usd
CY2022	us-gaap	Revenues Revenues	12365000	usd
CY2023	us-gaap	Revenues Revenues	10242000	usd
CY2024	us-gaap	Revenues Revenues	6321000	usd
CY2022	hiho	Value Added Tax And Surcharges Paid ValueAddedTaxAndSurchargesPaid	133000	usd
CY2023	hiho	Value Added Tax And Surcharges Paid ValueAddedTaxAndSurchargesPaid	106000	usd
CY2024	hiho	Value Added Tax And Surcharges Paid ValueAddedTaxAndSurchargesPaid	85000	usd
CY2024Q1	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	10000	usd
CY2022Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	79000	usd
CY2024	us-gaap	Proceeds From Other Deposits ProceedsFromOtherDeposits	10000	usd
CY2023	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	78000	usd
CY2023	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments	1000	usd
CY2024Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	10000	usd
CY2024Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	23000	usd
CY2024	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	1500	hkd
CY2024	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Percent DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent	0.03	pure
CY2024	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	9000000	mmk
CY2024	hiho	Relevant Compensation Price Per Share RelevantCompensationPricePerShare	0.004
CY2024	us-gaap	Income Tax Examination Likelihood Of Unfavorable Settlement IncomeTaxExaminationLikelihoodOfUnfavorableSettlement	The Group recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized.
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.50	pure
CY2022Q2	hiho	Net Liability NetLiability	4000	usd
CY2022Q2	hiho	Share Of Noncontrolling Interestrate ShareOfNoncontrollingInterestrate	0.49	pure
CY2022Q2	us-gaap	Noncontrolling Interest In Variable Interest Entity NoncontrollingInterestInVariableInterestEntity	2000	usd
CY2023Q1	hiho	Share Of Profit By Noncontrolling Interest ShareOfProfitByNoncontrollingInterest	2000	usd
CY2024	hiho	Gain Or Loss On Deregistration GainOrLossOnDeregistration	0	usd
CY2024	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges	527000	usd
CY2024	us-gaap	Dividends Stock DividendsStock	44	usd
CY2023Q1	us-gaap	Grants Receivable GrantsReceivable	309000	usd
CY2024Q1	us-gaap	Grants Receivable GrantsReceivable	0	usd
CY2024	hiho	Income Tax Reconciliation Foreign Income Tax Rate Assessable Profit IncomeTaxReconciliationForeignIncomeTaxRateAssessableProfit	1000000	cny
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.05	pure
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	568000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-313000	usd
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1139000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	106000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-12000	usd
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-107000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	101000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20000	usd
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-161000	usd
CY2022	hiho	Effective Income Tax Rate Reconciliation In Hongkong EffectiveIncomeTaxRateReconciliationInHongkong	0.165	pure
CY2023	hiho	Effective Income Tax Rate Reconciliation In Hongkong EffectiveIncomeTaxRateReconciliationInHongkong	0.165	pure
CY2024	hiho	Effective Income Tax Rate Reconciliation In Hongkong EffectiveIncomeTaxRateReconciliationInHongkong	0.165	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.308	pure
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.159	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	-0.079	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	-0.019	pure
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.226	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.104	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.009	pure
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.029	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.047	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.063	pure
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.188	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.004	pure
CY2022	hiho	Effective Income Tax Rate Reconciliation Tax Effect Of Tax Losses Not Recognized EffectiveIncomeTaxRateReconciliationTaxEffectOfTaxLossesNotRecognized	-0.044	pure
CY2023	hiho	Effective Income Tax Rate Reconciliation Tax Effect Of Tax Losses Not Recognized EffectiveIncomeTaxRateReconciliationTaxEffectOfTaxLossesNotRecognized	-0.557	pure
CY2024	hiho	Effective Income Tax Rate Reconciliation Tax Effect Of Tax Losses Not Recognized EffectiveIncomeTaxRateReconciliationTaxEffectOfTaxLossesNotRecognized	-0.123	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.037	pure
CY2022	hiho	Effective Income Tax Rate Reconciliation Utilization Of Tax Losses Previously Not Recognized EffectiveIncomeTaxRateReconciliationUtilizationOfTaxLossesPreviouslyNotRecognized	-0.037	pure
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	-0.212	pure
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.23	pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.031	pure
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.178	pure
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.064	pure
CY2024	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.141	pure
CY2023Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	5000	usd
CY2023Q1	hiho	Deferred Tax Liabilities Operating Lease Rightofuse Assets DeferredTaxLiabilitiesOperatingLeaseRightofuseAssets	562000	usd
CY2024Q1	hiho	Deferred Tax Liabilities Operating Lease Rightofuse Assets DeferredTaxLiabilitiesOperatingLeaseRightofuseAssets	163000	usd
CY2023Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	567000	usd
CY2024Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	163000	usd
CY2024Q1	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	64000	usd
CY2023Q1	hiho	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	460000	usd
CY2024Q1	hiho	Deferred Tax Assets Lease Liabilities DeferredTaxAssetsLeaseLiabilities	171000	usd
CY2023Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	469000	usd
CY2024Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	720000	usd
CY2023Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	469000	usd
CY2024Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	792000	usd
CY2023Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	460000	usd
CY2024Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	163000	usd
CY2023Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	107000	usd
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	593000	usd
CY2022Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	494000	usd
CY2023Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	469000	usd
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-99000	usd
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-25000	usd
CY2024	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	323000	usd
CY2022Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	494000	usd
CY2023Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	469000	usd
CY2024Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	792000	usd
CY2023Q1	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	3604000	usd
CY2024Q1	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	4270000	usd
CY2023Q1	hiho	Other Tax Losses Carried Forward OtherTaxLossesCarriedForward	3604000	usd
CY2024Q1	hiho	Other Tax Losses Carried Forward OtherTaxLossesCarriedForward	4093000	usd
CY2023Q1	us-gaap	Cash Cash	48000	usd
CY2024Q1	us-gaap	Cash Cash	6000	usd
CY2023Q1	us-gaap	Deposits Assets DepositsAssets	6904000	usd
CY2024Q1	us-gaap	Deposits Assets DepositsAssets	6595000	usd
CY2023Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6952000	usd
CY2024Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6601000	usd
CY2023Q1	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	2440000	usd
CY2024Q1	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	1296000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	554000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	43000	usd
CY2023Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1886000	usd
CY2024Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1253000	usd
CY2022Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	51000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	554000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	51000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	503000	usd
CY2024	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	-511000	usd
CY2022Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	51000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	554000	usd
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	43000	usd
CY2023Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet	28000	usd
CY2023Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	1043000	usd
CY2024Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	1067000	usd
CY2023Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	149000	usd
CY2024Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	197000	usd
CY2023Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	221000	usd
CY2024Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	302000	usd
CY2023Q1	us-gaap	Inventory Net InventoryNet	1413000	usd
CY2024Q1	us-gaap	Inventory Net InventoryNet	1566000	usd
CY2022	us-gaap	Inventory Write Down InventoryWriteDown	89000	usd
CY2023	us-gaap	Inventory Write Down InventoryWriteDown	67000	usd
CY2024	us-gaap	Inventory Write Down InventoryWriteDown	86000	usd
CY2023Q1	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	141000	usd
CY2024Q1	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	116000	usd
CY2023Q1	us-gaap	Supplies Supplies	164000	usd
CY2024Q1	us-gaap	Supplies Supplies	47000	usd
CY2023Q1	us-gaap	Deposits Assets Current DepositsAssetsCurrent	54000	usd
CY2024Q1	us-gaap	Deposits Assets Current DepositsAssetsCurrent	3000	usd
CY2023Q1	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	49000	usd
CY2024Q1	us-gaap	Other Prepaid Expense Current OtherPrepaidExpenseCurrent	60000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	2000	usd
CY2023Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	406000	usd
CY2024Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	226000	usd
CY2022Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	1000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	2000	usd
CY2022	hiho	Provisionreversal For The Year ProvisionreversalForTheYear	1000	usd
CY2023	hiho	Provisionreversal For The Year ProvisionreversalForTheYear	1000	usd
CY2024	hiho	Provisionreversal For The Year ProvisionreversalForTheYear	-2000	usd
CY2022Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	1000	usd
CY2023Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent	2000	usd
CY2023Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	12213000	usd
CY2024Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	12082000	usd
CY2023Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	11812000	usd
CY2024Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	11747000	usd
CY2024Q1	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	335000	usd
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	401000	usd
CY2022	us-gaap	Depreciation Depreciation	162000	usd
CY2023	us-gaap	Depreciation Depreciation	209000	usd
CY2024	us-gaap	Depreciation Depreciation	159000	usd
CY2024	us-gaap	Asset Impairment Charges AssetImpairmentCharges	335000	usd
CY2023Q1	us-gaap	Equity Method Investment Underlying Equity In Net Assets EquityMethodInvestmentUnderlyingEquityInNetAssets	5000	usd
CY2024Q1	us-gaap	Equity Method Investment Underlying Equity In Net Assets EquityMethodInvestmentUnderlyingEquityInNetAssets	5000	usd
CY2023Q1	hiho	Accumulated Impairment Losses Recognized AccumulatedImpairmentLossesRecognized	-5000	usd
CY2024Q1	hiho	Accumulated Impairment Losses Recognized AccumulatedImpairmentLossesRecognized	-5000	usd
CY2023Q1	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	90000	usd
CY2024Q1	us-gaap	Accrued Payroll Taxes Current AccruedPayrollTaxesCurrent	198000	usd
CY2023Q1	hiho	Accrued Housing Allowance Current AccruedHousingAllowanceCurrent	210000	usd
CY2024Q1	hiho	Accrued Housing Allowance Current AccruedHousingAllowanceCurrent	155000	usd
CY2023Q1	hiho	Accrued Other Social Benefit Current AccruedOtherSocialBenefitCurrent	1193000	usd
CY2024Q1	hiho	Accrued Other Social Benefit Current AccruedOtherSocialBenefitCurrent	979000	usd
CY2024Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	23000	usd
CY2024Q1	hiho	Deposits Received From Customers DepositsReceivedFromCustomers	10000	usd
CY2023Q1	hiho	Accrued Audit Fee AccruedAuditFee	205000	usd
CY2024Q1	hiho	Accrued Audit Fee AccruedAuditFee	220000	usd
CY2023Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	310000	usd
CY2024Q1	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	244000	usd
CY2023Q1	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	2008000	usd
CY2024Q1	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	1829000	usd
CY2023Q1	hiho	Accounts Payable And Other Accrued Liabilities Non Current AccountsPayableAndOtherAccruedLiabilitiesNonCurrent	17000	usd
CY2024Q1	hiho	Accounts Payable And Other Accrued Liabilities Non Current AccountsPayableAndOtherAccruedLiabilitiesNonCurrent	40000	usd
CY2023Q1	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	1991000	usd
CY2024Q1	us-gaap	Accounts Payable And Other Accrued Liabilities Current AccountsPayableAndOtherAccruedLiabilitiesCurrent	1789000	usd
CY2024	hiho	Employee Contract Period EmployeeContractPeriod	P5Y
CY2024	hiho	Eligible Employees To Be Retired Date EligibleEmployeesToBeRetiredDate	2025-05-01
CY2024Q1	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	390000	hkd
CY2024Q1	us-gaap	Employee Related Liabilities Current And Noncurrent EmployeeRelatedLiabilitiesCurrentAndNoncurrent	50000	usd
CY2024Q1	us-gaap	Other Employee Related Liabilities Current And Noncurrent OtherEmployeeRelatedLiabilitiesCurrentAndNoncurrent	390000	hkd
CY2024Q1	us-gaap	Other Employee Related Liabilities Current And Noncurrent OtherEmployeeRelatedLiabilitiesCurrentAndNoncurrent	50000	usd
CY2024	us-gaap	Lessee Finance Lease Restriction Or Covenant LesseeFinanceLeaseRestrictionOrCovenant	February 2026
CY2019Q1	us-gaap	Lessee Operating Lease Term Of Contract LesseeOperatingLeaseTermOfContract	P50Y
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	10000000	mmk
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	4.8	usd
CY2019Q1	us-gaap	Prepaid Rent PrepaidRent	950000	usd
CY2019	hiho	Rental Payments RentalPayments	P12Y
CY2024Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	123	usd
CY2024Q1	us-gaap	Operating Lease Payments OperatingLeasePayments	259000000	mmk
CY2024Q1	hiho	Rental Payments RentalPayments	P2Y
CY2024	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	527	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	871000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	888000	usd
CY2024	us-gaap	Operating Lease Cost OperatingLeaseCost	696000	usd
CY2022Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y2M19D
CY2023Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y1M24D
CY2024Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y9M7D
CY2022Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0859	pure
CY2023Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0756	pure
CY2024Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0806	pure
CY2023Q1	hiho	Operating Lease Cost Government Subsidy OperatingLeaseCostGovernmentSubsidy	247000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	631000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	597000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	2041000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	3269000	usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1878000	usd
CY2024Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	1391000	usd
CY2023	us-gaap	Payments For Rent PaymentsForRent	247000	usd
CY2023	us-gaap	Payments To Employees PaymentsToEmployees	62000	usd
CY2024	hiho	Employment Subsidyincluded In Other Income EmploymentSubsidyincludedInOtherIncome	0	usd
CY2023	hiho	Grants Receivable Amount GrantsReceivableAmount	-309000	usd
CY2024	hiho	Grants Receivable Amount GrantsReceivableAmount	0	usd
CY2023	hiho	Percentage Of Rental Payment PercentageOfRentalPayment	0.50	pure
CY2023	us-gaap	Defined Contribution Plan Maximum Annual Contributions Per Employee Amount DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount	1000	usd
CY2024	us-gaap	Payments To Employees PaymentsToEmployees	1000000	cny
CY2024	us-gaap	Payments To Employees PaymentsToEmployees	0	usd
CY2024Q1	us-gaap	Long Term Debt Percentage Bearing Fixed Interest Rate LongTermDebtPercentageBearingFixedInterestRate	0.08	pure
CY2022	us-gaap	Financing Receivable Accrued Interest Modified FinancingReceivableAccruedInterestModified	8000	usd
CY2023	us-gaap	Financing Receivable Accrued Interest Modified FinancingReceivableAccruedInterestModified	8000	usd
CY2024	us-gaap	Financing Receivable Accrued Interest Modified FinancingReceivableAccruedInterestModified	8000	usd
CY2020Q4	us-gaap	Line Of Credit Facility Periodic Payment LineOfCreditFacilityPeriodicPayment	1000000	usd
CY2021Q1	us-gaap	Line Of Credit Facility Periodic Payment LineOfCreditFacilityPeriodicPayment	1000000	usd
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent	0.10	pure
CY2023	us-gaap	Line Of Credit Facility Annual Principal Payment LineOfCreditFacilityAnnualPrincipalPayment	263000	usd
CY2023	us-gaap	Line Of Credit Facility Periodic Payment Principal LineOfCreditFacilityPeriodicPaymentPrincipal	737000	usd
CY2023	hiho	Utilized Credit Facility Amount UtilizedCreditFacilityAmount	28000	usd
CY2023Q3	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.1
CY2023Q4	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.05
CY2022Q4	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.15
CY2023Q1	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.05
CY2021Q4	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.06
CY2021Q4	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.06
CY2022Q2	us-gaap	Dividends Payable Amount Per Share DividendsPayableAmountPerShare	0.05
CY2022	us-gaap	Net Income Loss NetIncomeLoss	443000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	-294000	usd
CY2024	us-gaap	Net Income Loss NetIncomeLoss	-959000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4033346	shares
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4070524	shares
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	4373236	shares
CY2022Q1	hiho	Dilutive Stock Option DilutiveStockOption	154385	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4187731	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4070524	shares
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	4373236	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.07
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.22
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.07
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.22
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	225000	shares
CY2024	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	195000	shares
CY2024Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	23000	usd
CY2024	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	1500	hkd
CY2022	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	102000	usd
CY2023	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	90000	usd
CY2024	us-gaap	Other Tax Expense Benefit OtherTaxExpenseBenefit	86000	usd
CY2024	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.03	pure
CY2024	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	9000	mmk
CY2024	hiho	Relevant Compensation Price Per Share RelevantCompensationPricePerShare	0.004
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	154000	usd
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	146000	usd
CY2024	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	156000	usd
CY2019Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	585000	shares
CY2024Q1	us-gaap	Share Price SharePrice	1.97
CY2020Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	500000	shares
CY2020Q1	hiho	Fair Value Of Option Price Per Share FairValueOfOptionPricePerShare	0.33
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	1.97
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0166	pure
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P2Y6M
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.4183	pure
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.08	pure
CY2021Q1	hiho	Fair Value Of Option Price Per Share FairValueOfOptionPricePerShare	0.66
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice	2.42
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0022	pure
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P2Y6M
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.5356	pure
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.08	pure
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	365000	shares
CY2021Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.97
CY2021Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P3Y4M9D
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	10000	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	5000	shares
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	350000	shares
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.97
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P2Y4M9D
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	50000	shares
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	75000	shares
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	225000	shares
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.97
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P1Y4M9D
CY2024	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	30000	shares
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	195000	shares
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	1.97
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P0Y4M9D
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	225000	shares
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	1.97
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P1Y4M9D
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	195000	shares
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	1.97
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P0Y4M9D
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	16000	usd
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	25000	usd
CY2023	hiho	Common Stock Exercise Price CommonStockExercisePrice	2.04
CY2024	hiho	Common Stock Exercise Price CommonStockExercisePrice	2.1
CY2020	hiho	Employees Restricted Shares EmployeesRestrictedShares	175000	shares
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P5Y
CY2021Q1	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	15000	shares
CY2021Q1	us-gaap	Share Price SharePrice	4.12
CY2024Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P3Y
CY2024	us-gaap	Other Expenses OtherExpenses	45000	usd
CY2021	us-gaap	Other Expenses OtherExpenses	5000	usd
CY2022	us-gaap	Other Expenses OtherExpenses	20000	usd
CY2023	us-gaap	Other Expenses OtherExpenses	20000	usd
CY2024	us-gaap	Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures	300000	shares
CY2024	hiho	Share Based Compensation Arrangement By Share Based Payment Award Award Grants Date ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardGrantsDate	P5Y
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	34000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y4M9D
CY2023	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y4M9D
CY2024	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y8M23D
CY2024Q1	hiho	Repurchase Share Price Per Share RepurchaseSharePricePerShare	0.01
CY2023Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	190000	shares
CY2023Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	2.13
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	300000	shares
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	15000	shares
CY2024Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	475000	shares
CY2024Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	1.95
CY2024	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	pure
CY2022	us-gaap	Revenues Revenues	12365000	usd
CY2023	us-gaap	Revenues Revenues	10242000	usd
CY2024	us-gaap	Revenues Revenues	6321000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	567000	usd
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	-477000	usd
CY2024	us-gaap	Operating Income Loss OperatingIncomeLoss	-1631000	usd
CY2022	us-gaap	Depreciation Depreciation	162000	usd
CY2023	us-gaap	Depreciation Depreciation	209000	usd
CY2024	us-gaap	Depreciation Depreciation	159000	usd
CY2022Q1	hiho	Capital Expenditure CapitalExpenditure	134000	usd
CY2023Q1	hiho	Capital Expenditure CapitalExpenditure	92000	usd
CY2024Q1	hiho	Capital Expenditure CapitalExpenditure	118000	usd
CY2023Q1	us-gaap	Assets Assets	13883000	usd
CY2024Q1	us-gaap	Assets Assets	11318000	usd
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	401000	usd
CY2022	us-gaap	Revenues Revenues	12365000	usd
CY2023	us-gaap	Revenues Revenues	10242000	usd
CY2024	us-gaap	Revenues Revenues	6321000	usd
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	401000	usd
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse		usd
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse		usd
CY2022	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss		usd
CY2023	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss		usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense		usd
CY2024Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable		usd
CY2023Q1	us-gaap	Goodwill Goodwill		usd
CY2024Q1	us-gaap	Goodwill Goodwill		usd
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet		usd
CY2023Q1	us-gaap	Equity Method Investments EquityMethodInvestments		usd
CY2024Q1	us-gaap	Equity Method Investments EquityMethodInvestments		usd
CY2024Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet		usd
CY2023Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2024Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q1	us-gaap	Preferred Stock Value PreferredStockValue		usd
CY2024Q1	us-gaap	Preferred Stock Value PreferredStockValue		usd
CY2023Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued		shares
CY2024Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued		shares
CY2023Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding		shares
CY2024Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding		shares
CY2022	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse		usd
CY2023	us-gaap	Impairment Of Long Lived Assets Held For Use ImpairmentOfLongLivedAssetsHeldForUse		usd
CY2022	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss		usd
CY2023	us-gaap	Operating Lease Impairment Loss OperatingLeaseImpairmentLoss		usd
CY2022	us-gaap	Increase Decrease In Other Accounts Payable And Accrued Liabilities IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities		usd
CY2024	us-gaap	Increase Decrease In Deposit Other Assets IncreaseDecreaseInDepositOtherAssets		usd
CY2024	hiho	Placement Withdrawal Of Time Deposits PlacementWithdrawalOfTimeDeposits		usd
CY2022	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries		usd
CY2024	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries		usd
CY2023Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability		usd
CY2023	us-gaap	Proceeds From Other Deposits ProceedsFromOtherDeposits		usd
CY2024	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized		usd
CY2024	us-gaap	Temporary Equity Foreign Currency Translation Adjustments TemporaryEquityForeignCurrencyTranslationAdjustments		usd
CY2023Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability		usd
CY2022	hiho	Subcontracting Income SubcontractingIncome		usd
CY2023	hiho	Subcontracting Income SubcontractingIncome		usd
CY2023Q1	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities		usd
CY2023	us-gaap	Other Asset Impairment Charges OtherAssetImpairmentCharges		usd
CY2022	us-gaap	Dividends Stock DividendsStock		usd
CY2023	us-gaap	Dividends Stock DividendsStock		usd
CY2022Q1	us-gaap	Grants Receivable GrantsReceivable		usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate		pure
CY2024	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate		pure
CY2023	hiho	Effective Income Tax Rate Reconciliation Utilization Of Tax Losses Previously Not Recognized EffectiveIncomeTaxRateReconciliationUtilizationOfTaxLossesPreviouslyNotRecognized		pure
CY2024	hiho	Effective Income Tax Rate Reconciliation Utilization Of Tax Losses Previously Not Recognized EffectiveIncomeTaxRateReconciliationUtilizationOfTaxLossesPreviouslyNotRecognized		pure
CY2024Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment		usd
CY2023Q1	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment		usd
CY2024Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet		usd
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent		usd
CY2024Q1	us-gaap	Accounts Receivable Net AccountsReceivableNet		usd
CY2024Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent		usd
CY2021Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent		usd
CY2024Q1	us-gaap	Allowance For Doubtful Other Receivables Current AllowanceForDoubtfulOtherReceivablesCurrent		usd
CY2023Q1	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss		usd
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet		usd
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges		usd
CY2023	us-gaap	Asset Impairment Charges AssetImpairmentCharges		usd
CY2023Q1	us-gaap	Equity Method Investments EquityMethodInvestments		usd
CY2024Q1	us-gaap	Equity Method Investments EquityMethodInvestments		usd
CY2023Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities		usd
CY2023Q1	hiho	Deposits Received From Customers DepositsReceivedFromCustomers		usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree		usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour		usd
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive		usd
CY2022Q1	hiho	Operating Lease Cost Government Subsidy OperatingLeaseCostGovernmentSubsidy		usd
CY2024Q1	hiho	Operating Lease Cost Government Subsidy OperatingLeaseCostGovernmentSubsidy		usd
CY2022	us-gaap	Payments For Rent PaymentsForRent		usd
CY2024	us-gaap	Payments For Rent PaymentsForRent		usd
CY2023	hiho	Employment Subsidyincluded In Other Income EmploymentSubsidyincludedInOtherIncome		usd
CY2022	hiho	Grants Receivable Amount GrantsReceivableAmount		usd
CY2024	hiho	Utilized Credit Facility Amount UtilizedCreditFacilityAmount		usd
CY2023Q1	hiho	Dilutive Stock Option DilutiveStockOption		shares
CY2024Q1	hiho	Dilutive Stock Option DilutiveStockOption		shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod		shares
CY2024	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
CY2024	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
CY2024	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet		usd
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet		usd
CY2023	us-gaap	Capitalized Contract Cost Impairment Loss CapitalizedContractCostImpairmentLoss		usd
CY2023	hiho	Impairment Loss Of Property Plant And Equipment ImpairmentLossOfPropertyPlantAndEquipment		usd
CY2024	dei	Amendment Flag AmendmentFlag	false
CY2024	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2024	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	000000
CY2024	dei	Entity Central Index Key EntityCentralIndexKey	0001026785

Files In Submission

Name	View Source	Status
0001213900-24-061773-index-headers.html	Edgar Link	pending
0001213900-24-061773-index.html	Edgar Link	pending
0001213900-24-061773.txt	Edgar Link	pending
0001213900-24-061773-xbrl.zip	Edgar Link	pending
ea0209205-20f_highway.htm	Edgar Link	pending
ea020920501ex12-1_highway.htm	Edgar Link	pending
ea020920501ex12-2_highway.htm	Edgar Link	pending
ea020920501ex13-1_highway.htm	Edgar Link	pending
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ea020920501ex19-1_highway.htm	Edgar Link	pending
ea020920501ex8-1_highway.htm	Edgar Link	pending
ea020920501ex97_highway.htm	Edgar Link	pending
Financial_Report.xlsx	Edgar Link	pending
hiho-20240331.xsd	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable

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$HIHO
Highway Holdings Ltd Stock $hiho

2024 Q1 Form 20-F Financial Statement

#000121390024061773 Filed on July 16, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HIHO Highway Holdings Ltd Stock $hiho

2024 Q1 Form 20-F Financial Statement

#000121390024061773 Filed on July 16, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HIHO
Highway Holdings Ltd Stock $hiho