Pieris Pharmaceuticals, Inc. General form of registration statement for all companies including face-amount certificate companies

General form of registration statement for all companies including face-amount certificate companies

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Basis of Presentation and Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Consulting Shares - Additional Information (Detail)

v2.4.1.9

Consulting Shares - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Mar. 06, 2015
Related Party Transaction [Line Items]
Common stock, shares issued	29,429,522us-gaap_CommonStockSharesIssued	29,279,522us-gaap_CommonStockSharesIssued	11,828,974us-gaap_CommonStockSharesIssued
Common stock par value of issued shares	$ 0.001	$ 0.001	$ 0.001
Consulting Agreement [Member]
Related Party Transaction [Line Items]
Common stock, shares issued				150,000
Common stock par value of issued shares				$ 0.01
Agreement termination notice period	180 days
Termination agreement percentage of shares returned	40.00%
Shares subject to forfeiture	60,000
Estimated fair value of non-cancellable shares, Shares	90,000
Estimated fair value of non-cancellable shares, Value	$ 284,400
Estimated fair value cancellable shares, Shares	60,000
Estimated fair value of cancellable shares, Value	192,000
Estimated fair value of consulting shares	476,400
General and administrative expense recognized in consulting shares	311,067
Percentage of consulting shares recognizable as general and administrative expense	60.00%
Percentage of consulting shares recognizable as general and administrative expense offsetting credit to equity	40.00%
Consulting Agreement [Member] \| Non Cancellable Shares [Member]
Related Party Transaction [Line Items]
Share price	$ 3.16
General and administrative expense recognized in consulting shares	284,400
Consulting Agreement [Member] \| Cancellable Shares [Member]
Related Party Transaction [Line Items]
Share price	$ 3.20
General and administrative expense recognized in consulting shares	$ 26,667

- Definition

Agreement termination notice period.

+ References

No definition available.

+ Details

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Namespace Prefix:	pirs_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Estimated fair value of cancellable shares, value.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Estimated fair value of consulting shares, Net

+ References

No definition available.

+ Details

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Namespace Prefix:	pirs_
Data Type:	xbrli:monetaryItemType
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- Definition

Estimated fair value of non cancellable shares, value.

+ References

No definition available.

+ Details

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Namespace Prefix:	pirs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

General and administrative expense recognized in consulting shares.

+ References

No definition available.

+ Details

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Namespace Prefix:	pirs_
Data Type:	xbrli:monetaryItemType
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- Definition

Number Of Cancellable Shares

+ References

No definition available.

+ Details

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Namespace Prefix:	pirs_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number Of Non Cancellable Shares.

+ References

No definition available.

+ Details

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Namespace Prefix:	pirs_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of consulting shares recognizable as general and administrative expense.

+ References

No definition available.

+ Details

Name:	pirs_PercentageOfConsultingSharesRecognizableAsGeneralAndAdministrativeExpense
Namespace Prefix:	pirs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of consulting shares recognizable as general and administrative expense offsetting credit to equity.

+ References

No definition available.

+ Details

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Namespace Prefix:	pirs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of shares of common stock subject to forfeiture, pursuant to the terms of the agreement.

+ References

No definition available.

+ Details

Name:	pirs_SharesSubjectToForfeiture
Namespace Prefix:	pirs_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The element represents the percentage of shares returned that were previously issued pursuant to agreement.

+ References

No definition available.

+ Details

Name:	pirs_TerminationAgreementPercentageOfSharesReturned
Namespace Prefix:	pirs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face amount or stated value per share of common stock.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

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- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

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

+ References

No definition available.

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

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