Annual report pursuant to Section 13 and 15(d)

Note 9 - Long-term Debt (Details) - Long-term Debt Instruments

v2.4.1.9
Note 9 - Long-term Debt (Details) - Long-term Debt Instruments (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Long-term debt $ 11,372us-gaap_LongTermDebt $ 14,283us-gaap_LongTermDebt
Capital leases 47us-gaap_CapitalLeaseObligations [1] 141us-gaap_CapitalLeaseObligations [2]
11,372us-gaap_LongTermDebt 14,283us-gaap_LongTermDebt
Less current portion of long-term debt 3,733us-gaap_LongTermDebtCurrent 2,876us-gaap_LongTermDebtCurrent
Less long-term debt related to assets held for sale   35pesi_LongTermDebtRelatedToAssetsHeldForSale
7,639us-gaap_LongTermDebtNoncurrent 11,372us-gaap_LongTermDebtNoncurrent
Revolving Credit [Member]    
Debt Instrument [Line Items]    
Long-term debt    [3]    [3]
   [3]    [3]
Term Loan [Member]    
Debt Instrument [Line Items]    
Long-term debt 8,952us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_TermLoanMember 		[3] 11,238us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_TermLoanMember 		[3]
8,952us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_TermLoanMember 		[3] 11,238us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_TermLoanMember 		[3]
Promissory Note dated February 12, 2013 ("New Note") [Member]    
Debt Instrument [Line Items]    
Long-term debt 10us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedFebruary122013NewNoteMember 		[4] 127us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedFebruary122013NewNoteMember 		[4]
10us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedFebruary122013NewNoteMember 		[4] 127us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedFebruary122013NewNoteMember 		[4]
Promissory Note dated August 2, 2013 [Member]    
Debt Instrument [Line Items]    
Long-term debt 2,363us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedAugustSecond2013Member 		[4],[5] 2,777us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedAugustSecond2013Member 		[4],[5]
$ 2,363us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedAugustSecond2013Member 		[4],[5] $ 2,777us-gaap_LongTermDebt
/ us-gaap_DebtInstrumentAxis
= pesi_PromissoryNoteDatedAugustSecond2013Member 		[4],[5]
[1] One capital lease payable through November 2016, interest at rate of 6.0%.
[2] Capital leases payable 2014 to 2016, interest at rates ranging from 5.3% to 7.1%.
[3] Our Revolving Credit facility is collateralized by our accounts receivable and our Term Loan is collateralized by our property, plant, and equipment.
[4] Uncollateralized note.
[5] Net of debt discount of ($137,000) and ($223,000) for December 31, 2014 and December 31, 2013, respectively. See "Promissory Notes" below for additional information.