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Business segment reporting | 6 Months Ended
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Jul. 31, 2017
Segment reporting [Line Items] |
Segment Reporting Disclosure [Text Block] | Business segment reporting. As of January 31, 2016, PPIH is engaged in the manufacture and sale of products in one segment: Piping Systems. As described below, prior to January 29, 2016, the Company was also engaged in the manufacture and sale of products in the Filtration Products segment. Piping Systems engineers, designs, manufactures and sells specialty piping, leak detection and location systems. This segment's specialty piping systems include (i) industrial and secondary containment piping systems for transporting chemicals, hazardous fluids and petroleum products, (ii) insulated and jacketed district heating and cooling piping systems for efficient energy distribution to multiple locations from central energy plants, and (iii) oil and gas gathering flow and long lines for oil and mineral transportation. Piping Systems' leak detection and location systems are sold with many of its piping systems and on a stand-alone basis, to monitor areas where fluid intrusion may contaminate the environment, endanger personal safety, cause a fire hazard, impair essential services or damage equipment or property. Prior to January 29, 2016, the Company had a Filtration Products segment. This business is reported as discontinued operations in the consolidated financial statements. For further information, see "Notes to Consolidated Financial Statements, Note 4 Discontinued operations". For the three months ended July 31, 2017 and 2016, no individual customer accounted for 10% or more of the Company's consolidated net sales. For the six months ended July 31, 2017, no individual customer accounted for 10% or more of the Company's consolidated net sales, and for the six months ended July 31, 2016, one customer accounted for 11% of the Company's consolidated net sales. At July 31, 2017, one customer accounted for 20% of accounts receivable. Two customers accounted for 33% of accounts receivable at January 31, 2017.
| Three Months Ended July 31, |  | Six Months Ended July 31,
| 2017 |  | 2016 |  |  | 2017 |  | 2016 |
Net sales |  |  |  |  |
Piping Systems |  | $26,852 |  |  | $22,859 |  |  |  | $50,353 |  |  | $45,928 |
Gross profit |  |  |  |  |
Piping Systems |  | $3,058 |  |  | $2,980 |  |  |  | $4,843 |  |  | $4,972 |
Loss from operations |  |  |  |  |
Piping Systems |  | $62 |  |  | ($714 | ) |  |  | ($1,397 | ) |  | ($2,415 | )
Corporate |  | ($2,167 | ) |  | ($1,476 | ) |  | (4,525 | ) | (4,375 | )
Total loss from operations |  | ($2,105 | ) |  | ($2,190 | ) |  |  | ($5,922 | ) |  | ($6,790 | )

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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