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Note 6 - Analysis of Franchised and Company-owned Offices - Franchised and Owned Branch Locations (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Franchised and owned branch locations	435	217	139
Purchased in 2021 (net of sold locations)	207	65
Opened	16	14
Closed	(5)	(1)

X

- Definition

Represents franchised and owned branch locations.

+ References

No definition available.

+ Details

Name:	hqi_FranchisedAndOwnedBranchLocations
Namespace Prefix:	hqi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents franchised and owned branch locations closed.

+ References

No definition available.

+ Details

Name:	hqi_FranchisedAndOwnedBranchLocationsClosed
Namespace Prefix:	hqi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents franchised and owned branch locations opened.

+ References

No definition available.

+ Details

Name:	hqi_FranchisedAndOwnedBranchLocationsOpened
Namespace Prefix:	hqi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents franchised and owned branch locations purchased.

+ References

No definition available.

+ Details

Name:	hqi_FranchisedAndOwnedBranchLocationsPurchased
Namespace Prefix:	hqi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration