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Business Segment and Geographic Information (Schedule of Geographical Information) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Segment Reporting Information [Line Items] |  |
Revenues | $ 28,887 us-gaap_Revenues | $ 20,893 us-gaap_Revenues
United States [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 18,398 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US | 10,319 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_US
Canada [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | 10,474 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CA | 10,574 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = country_CA
Others [Member] |  |
Segment Reporting Information [Line Items] |  |
Revenues | $ 15 us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ppsi_OthersCountriesMember |

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + 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) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Details
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- Details
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- Details
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- Details
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Balance Type: |
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