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v3.26.1

Segment Reporting - Narratives (Details) | 6 Months Ended
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Jun. 30, 2026
Segment Reporting [Abstract] |
Number of reportable segments not disclosed | Reportable Segments

X
- Definition Number Of Reportable Segments Not Disclosed Flag + References No definition available. + Details
Name: | hapn_NumberOfReportableSegmentsNotDisclosedFlag
Namespace Prefix: | hapn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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