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

Deferred Receivable from Issuance of Shares (Detail)

v2.4.1.9
Deferred Receivable from Issuance of Shares (Detail) (USD $)
Sep. 30, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2008
Receivable from issuance of shares $ 121,801us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock $ 121,801us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock $ 121,801us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock $ 48,690us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
Steffen Schlehuber        
Receivable from issuance of shares   2,356us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyOneMember
2,356us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyOneMember
 
Claus Schalper        
Receivable from issuance of shares 1,755us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyTwoMember
1,755us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyTwoMember
1,755us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyTwoMember
 
Dr. Karsten Schurrle        
Receivable from issuance of shares   1,203us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyThreeMember
1,203us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyThreeMember
 
MAPO Beteiligungsgesellschaft mbH        
Receivable from issuance of shares   $ 116,487us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyFourMember
$ 116,487us-gaap_ReceivableFromShareholdersOrAffiliatesForIssuanceOfCapitalStock
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pirs_PartyFourMember