Annual report pursuant to Section 13 and 15(d)

Related Parties Transactions (Details Textual)

v2.4.1.9
Related Parties Transactions (Details Textual)
12 Months Ended 1 Months Ended 12 Months Ended
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2012
USD ($)
Jul. 31, 2012
Ping Lin [Member]
USD ($)
Jul. 31, 2012
Ping Lin [Member]
CNY
Jul. 31, 2013
Hai Yi Shipping Ltd. [Member]
USD ($)
Jul. 31, 2013
Hai Yi Shipping Ltd. [Member]
HKD
Dec. 31, 2014
Hai Yi Shipping Ltd. [Member]
USD ($)
Dec. 31, 2013
Hai Yi Shipping Ltd. [Member]
USD ($)
Related Party Transaction [Line Items]                  
Operating leases, Rent expense $ 13,674us-gaap_OperatingLeasesRentExpenseNet $ 13,678us-gaap_OperatingLeasesRentExpenseNet $ 5,545us-gaap_OperatingLeasesRentExpenseNet $ 14,000us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_PingLinMember
84,000us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_PingLinMember
       
Lease expiration date       Aug. 01, 2015 Aug. 01, 2015 Dec. 31, 2015 Dec. 31, 2015    
Service agreement, monthly payments           38,000us-gaap_CostOfServices
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_HaiYiShippingLimitedMember
298,500us-gaap_CostOfServices
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_HaiYiShippingLimitedMember
   
Renewal term           1 year 1 year    
Lease Term       3 years 3 years        
Term of services           1 year 6 months 1 year 6 months    
Rental and related administrative service charge               461,934pme_RentalAndRelatedAdministrativeServiceCharge
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_HaiYiShippingLimitedMember
230,903pme_RentalAndRelatedAdministrativeServiceCharge
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_HaiYiShippingLimitedMember
Renewal monthly payments           $ 38,000pme_ServiceAgreementRenewalMonthlyPayments
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_HaiYiShippingLimitedMember
298,500pme_ServiceAgreementRenewalMonthlyPayments
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= pme_HaiYiShippingLimitedMember