XML 53 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Operating Segments (Details) (USD $) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 Segment | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012 | Dec. 31, 2012
Operating Segments [Abstract] |  |  |  |  |  |  |  |  |
Number of reporting segments | 2 |  |  |  |  |  |  |  |
Financial information of our reporting segments [Abstract] |  |  |  |  |  |  |  |  |
Revenue from external customers | $ 22,784,000 |  | $ 33,698,000 |  | $ 42,613,000 |  | $ 71,634,000 |  |
Intercompany revenues | 0 |  | 0 |  | 0 |  | 0 |  |
Gross profit | 4,023,000 |  | 3,930,000 |  | 4,560,000 |  | 8,299,000 |  |
Interest income | 9,000 |  | 7,000 |  | 18,000 |  | 21,000 |  |
Interest expense | 200,000 |  | 199,000 |  | 344,000 |  | 420,000 |  |
Interest expense - financing fees | 24,000 |  | 26,000 |  | 47,000 |  | 60,000 |  |
Depreciation and amortization | 1,289,000 |  | 1,361,000 |  | 2,576,000 |  | 2,753,000 |  |
Segment profit (loss) | (980,000) |  | (1,009,000) |  | (3,868,000) |  | (1,816,000) |  |
Segment assets | 132,562,000 | [1] | 153,781,000 | [1] | 132,562,000 | [1] | 153,781,000 | [1] | 141,031,000
Expenditures for segment assets | 59,000 |  | 179,000 |  | 175,000 |  | 387,000 |  |
Total long-term debt, net of current portion | 11,850,000 |  | 13,002,000 |  | 11,850,000 |  | 13,002,000 |  |
CH Plateau Remediation Company [Member] |  |  |  |  |  |  |  |  |
Revenue, Major Customer [Line Items] |  |  |  |  |  |  |  |  |
Revenue from major customer | 6,419,000 |  | 6,323,000 |  | 12,440,000 |  | 12,633,000 |  |
Percentage of revenue from major customer (in hundredths) | 28.20% |  | 18.80% |  | 29.20% |  | 17.60% |  |
Treatment [Member] |  |  |  |  |  |  |  |  |
Financial information of our reporting segments [Abstract] |  |  |  |  |  |  |  |  |
Revenue from external customers | 10,108,000 | [2] | 10,037,000 | [2] | 17,450,000 | [2] | 22,879,000 | [2] |
Intercompany revenues | 407,000 |  | 549,000 |  | 1,075,000 |  | 1,158,000 |  |
Gross profit | 2,312,000 |  | 1,087,000 |  | 2,167,000 |  | 3,808,000 |  |
Interest income | 0 |  | 0 |  | 0 |  | 0 |  |
Interest expense | 22,000 |  | 3,000 |  | 27,000 |  | 5,000 |  |
Interest expense - financing fees | 0 |  | 0 |  | 0 |  | 0 |  |
Depreciation and amortization | 1,024,000 |  | 1,125,000 |  | 2,063,000 |  | 2,255,000 |  |
Segment profit (loss) | 795,000 |  | 72,000 |  | (93,000) |  | 1,164,000 |  |
Segment assets | 72,422,000 | [1] | 78,982,000 | [1] | 72,422,000 | [1] | 78,982,000 | [1] |
Expenditures for segment assets | 59,000 |  | 74,000 |  | 175,000 |  | 242,000 |  |
Total long-term debt, net of current portion | 14,000 |  | 60,000 |  | 14,000 |  | 60,000 |  |
Services [Member] |  |  |  |  |  |  |  |  |
Financial information of our reporting segments [Abstract] |  |  |  |  |  |  |  |  |
Revenue from external customers | 12,676,000 | [2] | 23,661,000 | [2] | 25,163,000 | [2] | 48,755,000 | [2] |
Intercompany revenues | 16,000 |  | 49,000 |  | 55,000 |  | 117,000 |  |
Gross profit | 1,711,000 |  | 2,843,000 |  | 2,393,000 |  | 4,491,000 |  |
Interest income | 0 |  | 0 |  | 0 |  | 0 |  |
Interest expense | 1,000 |  | 0 |  | (4,000) |  | 6,000 |  |
Interest expense - financing fees | 0 |  | 0 |  | 0 |  | 0 |  |
Depreciation and amortization | 238,000 |  | 218,000 |  | 460,000 |  | 462,000 |  |
Segment profit (loss) | (619,000) |  | 989,000 |  | (819,000) |  | 1,094,000 |  |
Segment assets | 31,810,000 | [1] | 43,568,000 | [1] | 31,810,000 | [1] | 43,568,000 | [1] |
Expenditures for segment assets | 0 |  | 103,000 |  | 0 |  | 141,000 |  |
Total long-term debt, net of current portion | 0 |  | 2,000 |  | 0 |  | 2,000 |  |
Segments Total [Member] |  |  |  |  |  |  |  |  |
Financial information of our reporting segments [Abstract] |  |  |  |  |  |  |  |  |
Revenue from external customers | 22,784,000 | [2] | 33,698,000 | [2] | 42,613,000 | [2] | 71,634,000 | [2] |
Intercompany revenues | 423,000 |  | 598,000 |  | 1,130,000 |  | 1,275,000 |  |
Gross profit | 4,023,000 |  | 3,930,000 |  | 4,560,000 |  | 8,299,000 |  |
Interest income | 0 |  | 0 |  | 0 |  | 0 |  |
Interest expense | 23,000 |  | 3,000 |  | 23,000 |  | 11,000 |  |
Interest expense - financing fees | 0 |  | 0 |  | 0 |  | 0 |  |
Depreciation and amortization | 1,262,000 |  | 1,343,000 |  | 2,523,000 |  | 2,717,000 |  |
Segment profit (loss) | 176,000 |  | 1,061,000 |  | (912,000) |  | 2,258,000 |  |
Segment assets | 104,232,000 | [1] | 122,550,000 | [1] | 104,232,000 | [1] | 122,550,000 | [1] |
Expenditures for segment assets | 59,000 |  | 177,000 |  | 175,000 |  | 383,000 |  |
Total long-term debt, net of current portion | 14,000 |  | 62,000 |  | 14,000 |  | 62,000 |  |
Corporate [Member] |  |  |  |  |  |  |  |  |
Financial information of our reporting segments [Abstract] |  |  |  |  |  |  |  |  |
Revenue from external customers | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |
Intercompany revenues | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |
Gross profit | 0 | [3] | 0 | [3] | 0 | [3] | 0 | [3] |
Interest income | 9,000 | [3] | 7,000 | [3] | 18,000 | [3] | 21,000 | [3] |
Interest expense | 177,000 | [3] | 196,000 | [3] | 321,000 | [3] | 409,000 | [3] |
Interest expense - financing fees | 24,000 | [3] | 26,000 | [3] | 47,000 | [3] | 60,000 | [3] |
Depreciation and amortization | 27,000 | [3] | 18,000 | [3] | 53,000 | [3] | 36,000 | [3] |
Segment profit (loss) | (1,156,000) | [3] | (2,070,000) | [3] | (2,956,000) | [3] | (4,074,000) | [3] |
Segment assets | 28,330,000 | [1],[3],[4] | 31,231,000 | [1],[3],[4] | 28,330,000 | [1],[3],[4] | 31,231,000 | [1],[3],[4] |
Expenditures for segment assets | 0 | [3] | 2,000 | [3] | 0 | [3] | 4,000 | [3] |
Total long-term debt, net of current portion | 11,836,000 | [3] | 12,940,000 | [3] | 11,836,000 | [3] | 12,940,000 | [3] |
Segment discontinued operations [Member] |  |  |  |  |  |  |  |  |
Financial information of our reporting segments [Abstract] |  |  |  |  |  |  |  |  |
Segment assets | $ 2,302,000 |  | $ 2,381,000 |  | $ 2,302,000 |  | $ 2,381,000 |  |
[1] | Segment assets have been adjusted for intercompany accounts to reflect actual assets for each segment.
[2] | Includes revenues generated from CH Plateau Remediation Company (“CHPRC”) of $6,419,000 or 28.2% and $12,440,000 or 29.2% for the three and six months ended June 30, 2013, respectively and $6,323,000 or 18.8% and $12,633,000 or 17.6% for the corresponding period of 2012, respectively.
[3] | Amounts reflect the activity for corporate headquarters not included in the segment information.
[4] | Amount includes assets from discontinued operations of $2,302,000 and $2,381,000 as of June 30, 2013 and 2012, respectively.

X
- Definition The intercompany revenue reported for the transaction within the fellow concerns of the entity. + References No definition available. + Details
Name: | pesi_IntercompanyRevenues
Namespace Prefix: | pesi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total expenditures for additions to long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets of the reportable segment; if the amount: (a) is included in the determination of segment assets reviewed by the chief operating decision maker or (b) is otherwise regularly provided to the chief operating decision maker, even if not included in the determination of segment assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 28 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_AdditionsToNoncurrentAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Concepts (CON) -Number 6 -Paragraph 25 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9054-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 39 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_EntityWideRevenueMajorCustomerAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_EntityWideRevenueMajorCustomerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. + References No definition available. + Details
Name: | us-gaap_EntityWideRevenueMajorCustomerPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents interest incurred for borrowed money which was used to produce goods or render services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 + Details
Name: | us-gaap_FinancingInterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1,2) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
Name: | us-gaap_GrossProfit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cost of borrowed funds accounted for as interest that was charged against earnings during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Paragraph 9 -Chapter V -Subsection II -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 14 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(b)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
Name: | us-gaap_InvestmentIncomeInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of revenue from external customers for the reportable segment. Such disclosure is presented if the amount is: (a) included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 27 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_RevenuesFromExternalCustomers
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingDisclosureOfEntitysReportableSegmentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration