v3.8.0.1

COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract] |  |  |  |  |
Operating Leases, Rent Expense | $ 0.5 | $ 0.5 | $ 1.5 | $ 1.9 |
Inventories |  |  |  |  |
Purchase Commitment, Excluding Long-term Commitment [Line Items] |  |  |  |  |
Amount of manufacturing commitment |  |  | $ 5.4 |  | $ 9.5

X
- Definition Short-term Purchase Commitment, Amount + References No definition available. + Details
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Namespace Prefix: | hive_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |