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Note 5 - Workers' Compensation Insurance and Reserves (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 31, 2014
Reimbursement Insurance Amount	$ 500,000
Obligations to Workers' Compensation Insurance Carrier [Member]
Letters of Credit Outstanding, Amount	14,300,000
Obligations to Workers' Compensation Insurance Carrier [Member] | Truist [Member]
Letters of Credit Outstanding, Amount	$ 14,300,000
Maximum [Member]
Insurance for Covered Losses and Expenses		$ 500,000

X

- Definition

Represents the insurance for covered losses and expenses.

+ References

No definition available.

+ Details

Name:	hqi_InsuranceForCoveredLossesAndExpenses
Namespace Prefix:	hqi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Represents reimbursements insurance agent.

+ References

No definition available.

+ Details

Name:	hqi_ReimbursementInsuranceAmount
Namespace Prefix:	hqi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=hqi_ObligationsToWorkersCompensationInsuranceCarrierMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=hqi_TruistMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: