Annual report pursuant to Section 13 and 15(d)

Prepayment for Long-Term Assets (Details)

v2.4.1.9
Prepayment for Long-Term Assets (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Prepayment for Long-Term Assets    
Payment for vessels construction $ 13,750,102us-gaap_PrepaidExpenseNoncurrent $ 33,985,148us-gaap_PrepaidExpenseNoncurrent
Vessels Construction [Member]    
Prepayment for Long-Term Assets    
Payment for vessels construction $ 13,750,102us-gaap_PrepaidExpenseNoncurrent
/ us-gaap_BalanceSheetLocationAxis
= pme_VesselsConstructionMember
$ 33,985,148us-gaap_PrepaidExpenseNoncurrent
/ us-gaap_BalanceSheetLocationAxis
= pme_VesselsConstructionMember