XML 44 R29.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Significant accounting policies Long-lived assets (Tables) | 12 Months Ended
--- | ---
Jan. 31, 2017
Long lived assets [Abstract] |
Property, Plant and Equipment [Table Text Block] |
| 2016 | 2015
Land, buildings and improvements | $22,330 | $14,758
Machinery and equipment | 44,538 | 41,534
Furniture, office equipment and computer systems | 4,704 | 5,632
Transportation equipment | 3,690 | 40
Subtotal | 75,262 | 61,964
Less accumulated depreciation and amortization | 38,987 | 36,564
Property, plant and equipment, net | $36,275 | $25,400

X
- Definition Long lived assets [Abstract] + References No definition available. + Details
Name: | ppih_LongLivedAssetsAbstract
Namespace Prefix: | ppih_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 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(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration