Annual report pursuant to Section 13 and 15(d)

Bank Loans (Details)

v2.4.1.9
Bank Loans (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Short-term Debt [Line Items]    
Short-term bank loans $ 30,353,890us-gaap_ShortTermBorrowings $ 9,085,353us-gaap_ShortTermBorrowings
China Development Bank [Member]    
Short-term Debt [Line Items]    
Short-term bank loans 5,000,000us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansMember
  
China Development Bank One [Member]    
Short-term Debt [Line Items]    
Short-term bank loans 3,185,980us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansOneMember
  
China Development Bank Two [Member]    
Short-term Debt [Line Items]    
Short-term bank loans 9,500,000us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansTwoMember
  
China Development Bank Three [Member]    
Short-term Debt [Line Items]    
Short-term bank loans 5,000,000us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansThreeMember
  
China Development Bank Four [Member]    
Short-term Debt [Line Items]    
Short-term bank loans 5,000,000us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansFourMember
  
Industrial and Commercial Bank of China [Member]    
Short-term Debt [Line Items]    
Short-term bank loans 1,640,693us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansFiveMember
  
Industrial and Commercial Bank of China One [Member]    
Short-term Debt [Line Items]    
Short-term bank loans 1,027,217us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansSixMember
  
Fujian Haixia Bank [Member]    
Short-term Debt [Line Items]    
Short-term bank loans    4,955,647us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansSevenMember
Fujian Haixia Bank One [Member]    
Short-term Debt [Line Items]    
Short-term bank loans    1,651,883us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansEightMember
Fujian Haixia Bank Two [Member]    
Short-term Debt [Line Items]    
Short-term bank loans    $ 2,477,823us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= pme_Short-TermBankLoansNineMember