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SUPPLEMENTAL BALANCE SHEET DISCLOSURES - Deferred revenue (Details) - HTC - Exclusivity Agreement $ in Thousands | Mar. 03, 2023 CAD ($) item
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Deferred Revenue |
Value of exclusivity right granted | $ | $ 273
Number of additional terms | item | 1
Additional term | 5 years
Period for written notice for renewal | 60 days

X
- Definition The value of the exclusivity right granted. + References No definition available. + Details
Name: | hsdt_ExclusivityRightGrantedValue
Namespace Prefix: | hsdt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the additional term of exclusivity rights. + References No definition available. + Details
Name: | hsdt_ExclusivityRightsAdditionalTerm
Namespace Prefix: | hsdt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of additional terms. + References No definition available. + Details
Name: | hsdt_ExclusivityRightsNumberOfAdditionalTerms
Namespace Prefix: | hsdt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period of written notice for renewal. + References No definition available. + Details
Name: | hsdt_ExclusivityRightsPeriodOfWrittenNoticeForRenewal
Namespace Prefix: | hsdt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DeferredRevenueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=hsdt_HealthTechConnexIncorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=hsdt_ExclusiveDistributionAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |