lease expiry date.

No definition available.

Name:	HPTO_LeaseExpireDate
Namespace Prefix:	HPTO_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Monthly rent payments, percentage.

+ References

No definition available.

+ Details

Name:	HPTO_MonthlyRentPaymentsPercentage
Namespace Prefix:	HPTO_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Commitment made to pay deferred cash remuneration expressed as a percentage of the individual's base salary.

+ References

No definition available.

+ Details

Name:	us-gaap_DeferredCompensationArrangementWithIndividualCashAwardsGrantedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Area of land subject to a ground lease.

+ References

No definition available.

+ Details

Name:	us-gaap_LandSubjectToGroundLeases
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of terms and conditions of option to extend operating sublease.

+ References

+ Details

Name:	us-gaap_LesseeOperatingSubleaseOptionToExtend
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of expense or loss included in net income that result in no cash flow, classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

Name:	us-gaap_OtherNoncashExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=HPTO_CFOAndCEOMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=HPTO_CampbellFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=HPTO_SubleaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies (Details Narrative)			3 Months Ended		9 Months Ended
Commitments and Contingencies (Details Narrative)	Apr. 28, 2014	Feb. 01, 2014 ft²	Sep. 30, 2017 USD ($)	Sep. 30, 2016	Sep. 30, 2017 USD ($)
Monthly rent payments, percentage					62.00%
Non-cash expenses \| $			$ 0		$ 284,000
CFO And CEO [Member]
Percentage for employee compensation				50.00%
Campbell Facility [Member]
Lease square feet \| ft²		10,659
Lease term		5 years
Lease expire date		2018-10
Campbell Facility [Member] \| Sublease Agreement [Member]
Monthly rent payments, percentage	62.00%
Lease description	The term of the sublease began on June 1, 2017 and extends through the end of our office lease term for that space. The monthly rent payments due to hopTo will offset approximately 62% of the monthly rent payments due to the landlord under hopTo’s lease for that space.