|
Revenue - Balance Sheet Items Related to FP7 Agreement (Detail) (USD $)
|
Mar. 31, 2015
|
Dec. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|---|
| Research and Development Arrangement, Contract to Perform for Others [Line Items] | |||
| Other current assets (receivables from FP7 grant) | $ 1,275,714us-gaap_OtherAssetsCurrent | $ 1,207,072us-gaap_OtherAssetsCurrent | $ 449,733us-gaap_OtherAssetsCurrent |
| Cash (restricted cash) | 0us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue | 72,497us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue | |
| Deferred revenue | 544,562us-gaap_DeferredRevenueCurrent | ||
| Seventh Research Framework Program (FP7 Agreement) [Member] | |||
| Research and Development Arrangement, Contract to Perform for Others [Line Items] | |||
| Other current assets (receivables from FP7 grant) |
857,489us-gaap_OtherAssetsCurrent / us-gaap_ProductOrServiceAxis = pirs_SeventhResearchFrameworkProgramMember |
261,568us-gaap_OtherAssetsCurrent / us-gaap_ProductOrServiceAxis = pirs_SeventhResearchFrameworkProgramMember |
|
| Cash (restricted cash) |
72,497us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_ProductOrServiceAxis = pirs_SeventhResearchFrameworkProgramMember |
||
| Deferred revenue |
$ 69,444us-gaap_DeferredRevenueCurrent / us-gaap_ProductOrServiceAxis = pirs_SeventhResearchFrameworkProgramMember |
| X | ||||||||||
|
- Definition
The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|