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Note 3 - Related Party Transactions - Related Party Balances (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Due to franchisees | $ 11,380 |  | $ 11,380 |  | $ 7,496
Worlds Franchisees [Member] |  |  |  |  |
Franchisee royalties | 2,177 | $ 1,137 | 6,442 | $ 3,914 |
Due to franchisees | 1,468 |  | 1,468 |  | 535
Risk management incentive program liability | $ 446 |  | $ 446 |  | $ 703

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

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- Definition Amount of transactions with related party during the financial reporting period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864 + 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: |