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Note 3 - Related Party Transactions - Related Party Balances (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
Due to franchisees | $ 11,602 |  | $ 11,602 |  | $ 7,004
Worlds Franchisees [Member] |  |  |  |  |
Franchise royalties | 2,595 | $ 2,257 | 4,883 | $ 4,475 |
Due to franchisees | 2,665 |  | 2,665 |  | 929
Risk management incentive program liability | $ 499 |  | $ 499 |  | $ 37

X
- Definition Carrying amount as of the balance sheet date of obligations due all franchisees. + References No definition available. + Details
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Namespace Prefix: | hqi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents risk management incentive program liability. + References No definition available. + Details
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Namespace Prefix: | hqi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 850 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483326/850-10-50-1 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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