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Note 8 - Stock Based Compensation - Summary of Non-vested Stock Options (Details) - $ / shares shares in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Non-vested, shares (in shares) | 0 | 2
Non-vested, Weighted average exercise price per share (in dollars per share) | $ 0 | $ 5.50
Non-vested, Weighted average grant date fair value (in dollars per share) | $ 0 | $ 3.05
Vested, shares (in shares) | 0 | (2)
Vested, Weighted average exercise price per share (in dollars per share) | $ 0 | $ 5.50
Vested, Weighted average grant date fair value (in dollars per share) | $ 0 | $ 3.05
Non-vested, shares (in shares) | 0 | 0
Non-vested, Weighted average exercise price per share (in dollars per share) | $ 0 | $ 0
Non-vested, Weighted average grant date fair value (in dollars per share) | $ 0 | $ 0

X
- Definition Weighted average exercise price of nonvested award under share-based payment arrangement. + References No definition available. + Details
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Namespace Prefix: | hqi_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average price at which grantees could acquire or could have acquired the underlying shares with respect to any other type of change in shares reserved for issuance. + References No definition available. + Details
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Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of non-vested options outstanding. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average grant-date fair value of non-vested options outstanding. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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X
- Definition Number of options vested. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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X
- Definition Weighted average grant-date fair value of options vested. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
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Period Type: | duration