XML 67 R52.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Stock options Option activity (Tables) | 12 Months Ended
--- | ---
Jan. 31, 2018
Option activity [Abstract] |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] |
|  | 2017 |  | 2016 |
1. | Risk-free interest rate | — | % | 1.2 | %
2. | Expected volatility | — | % | 43.2 | %
3. | Expected life in years | 0 |  | 5.0 |
4. | Dividend yield | — | % | — | %
Share-based Compensation, Stock Options, Activity [Table Text Block] |
(Shares in thousands) | Options | Weighted average exercise price | Weighted average remaining contractual term | Aggregate intrinsic value
Outstanding on January 31, 2016 | 720 |  | $11.38 | 5.1 | $34
Granted | 22 |  | 7.33 |  |  |
Exercised | (59 | ) | 6.70 |  |  | 68 |
Expired or forfeited | (159 | ) | 11.98 |  |  |
Outstanding on January 31, 2017 | 524 |  | 11.55 |  | 4.5 | 534 |
Options exercisable on January 31, 2017 | 450 |  | $11.92 | 3.9 | 465 |
Exercised | (35 | ) | 6.80 |  |  | 45 |
Expired or forfeited | (131 | ) | 18.54 |  |  |
Outstanding on January 31, 2018 | 358 |  | 9.44 |  | 4.0 | 482 |
Options exercisable on January 31, 2018 | 327 |  | $9.56 | 3.7 | $433

X
- Definition Option activity [Abstract] + References No definition available. + Details
Name: | ppih_OptionActivityAbstract
Namespace Prefix: | ppih_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration