XML 47 R75.htm IDEA: XBRL DOCUMENT v2.4.1.9
Note 5 - Loans (Details) - Allowance for Loan Losses (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]                  
Allowance for loan losses, beginning of period           $ 17,825us-gaap_LoansAndLeasesReceivableAllowance $ 16,485us-gaap_LoansAndLeasesReceivableAllowance $ 17,825us-gaap_LoansAndLeasesReceivableAllowance  
Provision for loan losses (1,800)us-gaap_ProvisionForLoanAndLeaseLosses (500)us-gaap_ProvisionForLoanAndLeaseLosses 1,800us-gaap_ProvisionForLoanAndLeaseLosses 645us-gaap_ProvisionForLoanAndLeaseLosses 670us-gaap_ProvisionForLoanAndLeaseLosses 350us-gaap_ProvisionForLoanAndLeaseLosses (2,300)us-gaap_ProvisionForLoanAndLeaseLosses 3,465us-gaap_ProvisionForLoanAndLeaseLosses 13,075us-gaap_ProvisionForLoanAndLeaseLosses
Loan charge-offs             3,089us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs 5,891us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs  
Loan recoveries             (1,824)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts (1,086)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts  
Net loans charged-off             1,265us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet 4,805us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet  
Allowance for loan losses, end of period 12,920us-gaap_LoansAndLeasesReceivableAllowance   16,485us-gaap_LoansAndLeasesReceivableAllowance       12,920us-gaap_LoansAndLeasesReceivableAllowance 16,485us-gaap_LoansAndLeasesReceivableAllowance 17,825us-gaap_LoansAndLeasesReceivableAllowance
Allowance for loan losses, individually evaluated for impairment 1,737us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1   2,555us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1       1,737us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1 2,555us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1  
Allowance for loan losses, collectively evaluated for impairment 11,183us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment   13,930us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment       11,183us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment 13,930us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment  
Loans, gross, individually evaluated for impairment 31,562us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment   44,695us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment       31,562us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment 44,695us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment  
Loans, gross, collectively evaluated for impairment 773,497us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment   722,818us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment       773,497us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment 722,818us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment  
Loans, gross 805,059us-gaap_LoansAndLeasesReceivableGrossCarryingAmount   767,513us-gaap_LoansAndLeasesReceivableGrossCarryingAmount       805,059us-gaap_LoansAndLeasesReceivableGrossCarryingAmount 767,513us-gaap_LoansAndLeasesReceivableGrossCarryingAmount  
Commercial Real Estate Loans [Member]                  
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]                  
Allowance for loan losses, beginning of period           12,317us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
10,565us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
12,317us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Provision for loan losses             (2,506)us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
(263)us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Loan charge-offs             1,082us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
1,780us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Loan recoveries             (396)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
(291)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Net loans charged-off             686us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
1,489us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Allowance for loan losses, end of period 7,373us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
  10,565us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
      7,373us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
10,565us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Allowance for loan losses, individually evaluated for impairment 1,555us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
  1,736us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
      1,555us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
1,736us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Allowance for loan losses, collectively evaluated for impairment 5,818us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
  8,829us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
      5,818us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
8,829us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Loans, gross, individually evaluated for impairment 29,009us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
  39,938us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
      29,009us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
39,938us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Loans, gross, collectively evaluated for impairment 401,016us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
  415,514us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
      401,016us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
415,514us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Loans, gross 430,025us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
  455,452us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
      430,025us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
455,452us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialRealEstateLoansMember
 
Single Family Residential [Member]                  
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]                  
Allowance for loan losses, beginning of period           3,140us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
3,124us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
3,140us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Provision for loan losses             (553)us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
580us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Loan charge-offs             697us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
731us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Loan recoveries             (982)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
(135)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Net loans charged-off             (285)us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
596us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Allowance for loan losses, end of period 2,856us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
  3,124us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
      2,856us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
3,124us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Allowance for loan losses, individually evaluated for impairment 65us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
  163us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
      65us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
163us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Allowance for loan losses, collectively evaluated for impairment 2,791us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
  2,961us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
      2,791us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
2,961us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Loans, gross, individually evaluated for impairment 1,316us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
  2,291us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
      1,316us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
2,291us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Loans, gross, collectively evaluated for impairment 203,123us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
  175,834us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
      203,123us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
175,834us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Loans, gross 204,439us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
  178,125us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
      204,439us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
178,125us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_SingleFamilyResidentialMember
 
Commercial and Industrial [Member]                  
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]                  
Allowance for loan losses, beginning of period           1,264us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
1,682us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
1,264us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Provision for loan losses             (152)us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
2,697us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Loan charge-offs             530us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
2,426us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Loan recoveries             (47)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
(147)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Net loans charged-off             483us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
2,279us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Allowance for loan losses, end of period 1,047us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
  1,682us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
      1,047us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
1,682us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Allowance for loan losses, individually evaluated for impairment 115us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
  644us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
      115us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
644us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Allowance for loan losses, collectively evaluated for impairment 932us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
  1,038us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
      932us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
1,038us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Loans, gross, individually evaluated for impairment 1,223us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
  2,433us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
      1,223us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
2,433us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Loans, gross, collectively evaluated for impairment 79,704us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
  70,645us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
      79,704us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
70,645us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Loans, gross 80,927us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
  73,078us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
      80,927us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
73,078us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_CommercialAndIndustrialMember
 
Consumer [Member]                  
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]                  
Allowance for loan losses, beginning of period           1,093us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
1,118us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
1,093us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Provision for loan losses             362us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
172us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Loan charge-offs             225us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
285us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Loan recoveries             (83)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
(138)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Net loans charged-off             142us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
147us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Allowance for loan losses, end of period 1,338us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
  1,118us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
      1,338us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
1,118us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Allowance for loan losses, individually evaluated for impairment 2us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
  12us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
      2us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
12us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Allowance for loan losses, collectively evaluated for impairment 1,336us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
  1,106us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
      1,336us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
1,106us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Loans, gross, individually evaluated for impairment 14us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
  33us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
      14us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
33us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Loans, gross, collectively evaluated for impairment 76,970us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
  50,066us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
      76,970us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
50,066us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
Loans, gross 76,984us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
  50,099us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
      76,984us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
50,099us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_ConsumerMember
 
All Other [Member]                  
Note 5 - Loans (Details) - Allowance for Loan Losses [Line Items]                  
Allowance for loan losses, beginning of period           11us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
(4)us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
11us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Provision for loan losses             549us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
279us-gaap_ProvisionForLoanAndLeaseLosses
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Loan charge-offs             555us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
669us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Loan recoveries             (316)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
(375)us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Net loans charged-off             239us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
294us-gaap_AllowanceForLoanAndLeaseLossesWriteoffsNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Allowance for loan losses, end of period 306us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
  (4)us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
      306us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
(4)us-gaap_LoansAndLeasesReceivableAllowance
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Allowance for loan losses, collectively evaluated for impairment 306us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
  (4)us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
      306us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
(4)us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Loans, gross, collectively evaluated for impairment 12,684us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
  10,759us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
      12,684us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
10,759us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
 
Loans, gross $ 12,684us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
  $ 10,759us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
      $ 12,684us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember
$ 10,759us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= plmt_AllOtherMember