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Hato Rey Partnership (Details Textual) (USD $)
 12 Months Ended
Dec. 31, 2014
Nov. 12, 2013
Noncontrolling Interest [Line Items]    
Loan Provided To Partnership Firm Interest Percentage 13.00%pdnlb_LoanProvidedToPartnershipFirmInterestPercentage  
Loan Provided To Partnership Firm 2,670,000pdnlb_LoanProvidedToPartnershipFirm $ 2,670,000pdnlb_LoanProvidedToPartnershipFirm
Accrued Interest On Loan Provided To Partnership Firm Interest Percentage   $ 1,614,941pdnlb_AccruedInterestOnLoanProvidedToPartnershipFirmInterestPercentage
Hato Rey Partnership [Member]    
Noncontrolling Interest [Line Items]    
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest 60.00%us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
/ us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis
= pdnlb_HatoReyPartnershipMember