The fair value of a class of warrants measured by an entity.

No definition available.

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Namespace Prefix:	HTPO_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The measure of stock price using an annualized forfeiture rate.

+ References

No definition available.

+ Details

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Namespace Prefix:	HTPO_
Data Type:	num:percentItemType
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Period Type:	duration

- Definition

Estimated exercised factor used for fair value calculation.

+ References

No definition available.

+ Details

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Namespace Prefix:	HTPO_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Warrant Description.

+ References

No definition available.

+ Details

Name:	HTPO_WarrantDescription
Namespace Prefix:	HTPO_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Warrants exercise price upon reprising.

+ References

No definition available.

+ Details

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Namespace Prefix:	HTPO_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The value increase (decrease) in warrants liability during the period.

+ References

No definition available.

+ Details

Name:	HTPO_WarrantsLiabilityPeriodIncreaseDecrease
Namespace Prefix:	HTPO_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

+ Details

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

- Definition

Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

+ References

+ Details

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

- Definition

Risk-free interest rate assumption used in valuing an instrument.

+ References

+ Details

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

- Definition

Weighted average expected dividend for an entity using a valuation technique with different dividend rates during the contractual term.

+ References

+ Details

Name:	us-gaap_FairValueAssumptionsWeightedAverageExpectedDividend
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of shares of stock issued attributable to transactions classified as other.

+ References

No definition available.

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=HTPO_ExerciseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=HTPO_TwoThousandElevanTransactionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=HTPO_IPCapitalMember
Namespace Prefix:
Data Type:	na
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- Details

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- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
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Liability Attributable to Warrants (Details Narrative)		12 Months Ended
Liability Attributable to Warrants (Details Narrative)	Jan. 07, 2014 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) Integer $ / shares	Dec. 31, 2015 USD ($)	Jan. 07, 2015 USD ($)
Warrants liability \| $			$ 31,600
Class of warrant or right, fair value \| $				$ 407,300
Fair value assumptions, expected volatility rate		113.00%
Fair value assumptions, annualized forfeiture rate		0.00%
Fair value assumption, exercise factor \| Integer		3.5
Fair value assumptions, risk free interest rate		1.20%
Fair value assumptions, weighted average expected dividend		$ 0
Warrants liability, period increase (decrease) \| $		$ 615,700	$ 615,700
Securities Purchase Agreement [Member]
Class of warrant or right, number of securities called by warrants or rights \| shares	376,667
Class of warrant or right, exercise price of warrants or rights	$ 6.00
Warrants liability \| $	$ 1,356,000
Exercise Agreement [Member]
Fair value assumptions, expected term		4 years 1 month 6 days
2011 Transaction [Member] \| Minimum [Member]
Class of warrant or right, exercise price of warrants or rights		$ 3.00
2011 Transaction [Member] \| Maximum [Member]
Class of warrant or right, exercise price of warrants or rights		3.90
ip Capital [Member]
Class of warrant or right, exercise price of warrants or rights		$ 3.90
2015 Transaction [Member]
Warrant Description		The 2015 Transaction (Note 10) met those conditions and resulted in the placement agent warrants being repriced from $3.00 and $3.90 to $2.55 and $3.30, respectively. On September 1, 2016, the liability warrants for the 2011 transaction expired.
2015 Transaction [Member] \| Minimum [Member]
Class of warrant or right, exercise price of warrants or rights		$ 3.00
Warrants exercise price upon reprising		2.55
2015 Transaction [Member] \| Maximum [Member]
Class of warrant or right, exercise price of warrants or rights		3.90
Warrants exercise price upon reprising		$ 3.30
Common Stock [Member] \| Securities Purchase Agreement [Member]
Stock issued during period, shares, new issues \| shares	753,333
Fair value of common stock	$ 4.50