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LOANS, TDR Modified During Period (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Loan
Mar. 31, 2014
Troubled Debt Restructuring Activity [Line Items]    
Number of Loans 1us-gaap_FinancingReceivableModificationsNumberOfContracts2  
Pre-Modification Outstanding Recorded Investment $ 1,543us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2  
Post-Modification Outstanding Recorded Investment 1,543us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2  
Increase in allowance for loan losses due to troubled debt restructuring 0us-gaap_AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease 0us-gaap_AllowanceForLoanAndLeaseLossesPeriodIncreaseDecrease
Defaults within 12 months after modification 0us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 0us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Multifamily real estate [Member]    
Troubled Debt Restructuring Activity [Line Items]    
Number of Loans 1us-gaap_FinancingReceivableModificationsNumberOfContracts2
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= pfbi_MultifamilyRealEstateMember
 
Pre-Modification Outstanding Recorded Investment 1,543us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= pfbi_MultifamilyRealEstateMember
 
Post-Modification Outstanding Recorded Investment $ 1,543us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
/ us-gaap_FinancingReceivableTroubledDebtRestructuringAxis
= pfbi_MultifamilyRealEstateMember