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Related-Party Transactions - Related Party Expenses (Detail) (TUM [Member], USD $)
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3 Months Ended | |
|---|---|---|
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Mar. 31, 2015
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Mar. 31, 2014
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TUM [Member]
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| Related Party Transaction [Line Items] | ||
| Transfer of licenses and protective rights |
$ 14,057us-gaap_LicenseCosts / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pirs_TumMember |
$ 17,131us-gaap_LicenseCosts / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pirs_TumMember |
| Total expenses |
$ 14,057us-gaap_CostsAndExpensesRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pirs_TumMember |
$ 17,131us-gaap_CostsAndExpensesRelatedParty / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = pirs_TumMember |
| X | ||||||||||
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- Definition
Costs of sales and operating expenses for the period incurred from transactions with related parties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Costs incurred and are directly related to generating license revenue. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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