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LOANS (Schedule of Modified as Troubled Debt Restructurings Subsequently Defaulted) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
N
Dec. 31, 2012
N
Number of Subsequently Defaulted Contracts 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Subsequently Defaulted Recorded Investment $ 59us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 $ 240us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Primary Residential Mortgages [Member]    
Number of Subsequently Defaulted Contracts 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= pgc_PrimaryResidentialMortgagesMember		  
Subsequently Defaulted Recorded Investment 59us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= pgc_PrimaryResidentialMortgagesMember		  
Junior Lien Loan on Residence [Member]    
Number of Subsequently Defaulted Contracts   1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_JuniorLoansMember
Subsequently Defaulted Recorded Investment   $ 240us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_JuniorLoansMember