Name:	hh_AggregateGrantDateFairValueEmployeeStockPurchasePlan
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Data Type:	xbrli:monetaryItemType
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Aggregate grant date fair value of restricted stock issued to non-employee directors.

No definition available.

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Namespace Prefix:	hh_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

Name:	hh_EsppAbstract
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

ESPP, maximum subscription amount

No definition available.

Name:	hh_EsppMaximumSubscriptionAmount
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

ESPP, number of shares authorized

No definition available.

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Data Type:	xbrli:sharesItemType
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Period Type:	instant

ESPP purchase date, number of months after grant date

No definition available.

Name:	hh_ESPPpurchasedate
Namespace Prefix:	hh_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

ESPP, purchase price as percentage of market value

No definition available.

Name:	hh_EsppPurchasePriceAsPercentageOfMarketValue
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	hh_NonVestedStockAwardsAbstract
Namespace Prefix:	hh_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Name:	hh_OtherStockAwardsAbstract
Namespace Prefix:	hh_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The number of shares awarded annually to each non-employee member of the Board of Directors other than the non-executive chair.

No definition available.

Name:	hh_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwardedAnnuallyToNonEmployeeBoardOfDirectorsOtherThanNonExecutiveChair
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Data Type:	xbrli:sharesItemType
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Period Type:	instant

The number of shares awarded annually to non-executive chair of the Board of Directors.

No definition available.

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

The number of stock options that vested during the reporting period.

No definition available.

Name:	hh_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod
Namespace Prefix:	hh_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

The percentage of a share-based payment award that vests in year five.

No definition available.

Name:	hh_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageYearFive
Namespace Prefix:	hh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The percentage of a share-based payment award that vests in year four.

No definition available.

Name:	hh_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageYearFour
Namespace Prefix:	hh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The percentage of a share-based payment award that vests in year one.

No definition available.

Name:	hh_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageYearOne
Namespace Prefix:	hh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The percentage of a share-based payment award that vests in year three.

No definition available.

Name:	hh_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageYearThree
Namespace Prefix:	hh_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The percentage of a share-based payment award that vests in year two.

No definition available.

Name:	hh_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPercentageYearTwo
Namespace Prefix:	hh_
Data Type:	num:percentItemType
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Period Type:	instant

Share-based Compensation, Term Over Which Grants Will Occur

No definition available.

Name:	hh_ShareBasedCompensationTermOverWhichGrantsWillOccur
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The number of shares subscribed to by employees under the Employee Stock Purchase Plan during the period.

No definition available.

Name:	hh_StockAllocatedDuringPeriodSharesEmployeeStockPurchasePlan
Namespace Prefix:	hh_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

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Namespace Prefix:	hh_
Data Type:	xbrli:stringItemType
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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(1)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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Data Type:	xbrli:monetaryItemType
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Unrecognized cost of unvested share-based compensation awards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested options awarded to employees as compensation.

No definition available.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
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Period Type:	instant

Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

No definition available.

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Number of share options (or share units) exercised during the current period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28,29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5