| PPIH 0000914122 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2018-06-18 | 4/A | FORM 4/A | View Document |
| 2018-06-18 | 4/A | FORM 4/A | View Document |
| 2018-06-12 | 10-Q | 10-Q Q1 2018 | View Document |
| 2018-06-12 | 8-K | 8-K EARNINGS RELEASE | View Document |
| 2018-06-06 | 8-K | 8-K SHAREHOLDER MEETING | View Document |
| 2018-05-03 | S-8 | S-8 REGISTRATION OF 600,000 SHARES | View Document |
| 2018-04-25 | DEF 14A | DEF 14A PROXY | View Document |
| 2018-04-25 | DEFA14A | DEFA14A NOTICE OF INTERNET AVAILABILITY | View Document |
| 2018-04-19 | 10-K | 10-K PPIH | View Document |
| 2018-02-22 | 8-K | 8-K BYLAWS | View Document |
| 2018-02-14 | SC 13G | SCHEDULE 13G | View Document |
| 2018-02-09 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2018-01-30 | SC 13G | View Document | |
| 2017-12-15 | 10-Q | 10-Q OCTOBER 31, 2017 | View Document |
| 2017-11-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-09-19 | 10-Q | 10-Q PPIH JULY 2017 | View Document |
| 2017-09-15 | NT 10-Q | NT 10-Q LATE FILING 7-31-17 | View Document |
| 2017-06-26 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-06-26 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-06-26 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-06-26 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-06-26 | 8-K | 8-K SUBMISSION OF VOTE | View Document |
| 2017-06-20 | 4/A | PRIMARY DOCUMENT | View Document |
| 2017-06-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-06-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-06-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-06-14 | DEFA14A | DEFA14A PROXY SUPPLEMENT 2017 AMENDED PLAN | View Document |
| 2017-06-13 | 10-Q | 10-Q PPIH APRIL 2017 | View Document |
| 2017-05-12 | DEFA14A | DEFA14A NOTICE OF INTERNET AVAILABILITY | View Document |
| 2017-05-12 | DEF 14A | DEF 14A 2017 PROXY | View Document |
| 2017-04-14 | 10-K | 10-K PPIH | View Document |
| 2017-04-10 | SC 13G/A | View Document | |
| 2017-04-03 | SC 13D/A | SCHEDULE 13D/A | View Document |
| 2017-03-20 | 8-K | 8-K NAME CHANGE | View Document |
| 2017-02-14 | SC 13G/A | View Document | |
| 2017-02-09 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2017-02-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-02-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-02-03 | 8-K | 8-K DEPARTURES | View Document |
| 2017-02-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-02-02 | 4 | PRIMARY DOCUMENT | View Document |
| 2017-01-27 | SC 13G | View Document | |
| 2017-01-19 | SC 13D/A | SCHEDULE 13D/A | View Document |
| 2017-01-09 | SC 13D/A | SCHEDULE 13D/A | View Document |
| 2016-12-13 | 10-Q | 10-Q OCTOBER 31, 2016 | View Document |
| 2016-11-09 | 3 | PRIMARY DOCUMENT | View Document |
| 2016-11-08 | 8-K | 8-K DAVID MANSFIELD NAMED CEO | View Document |
| 2016-10-27 | 8-K | 8-K BMO 5TH AMENDMENT | View Document |
| 2016-10-27 | 8-K/A | 8-K/A ACQUISITION | View Document |
| 2016-10-19 | SC 13D | SCHEDULE 13D | View Document |
| 2016-09-09 | 10-Q | 10-Q MFRI 2ND QUARTER | View Document |
| 2016-06-30 | 8-K | 8-K SUBMISSION OF VOTE | View Document |
| 2016-06-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-21 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-15 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-15 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-15 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-06-10 | 10-Q | 10-Q | View Document |
| 2016-05-19 | DEFA14A | DEFA14A NOTICE OF INTERNET AVAILABILITY | View Document |
| 2016-05-19 | DEF 14A | DEF 14A MFRI 2016 PROXY | View Document |
| 2016-05-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-05-17 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-05-11 | 4/A | PRIMARY DOCUMENT | View Document |
| 2016-05-05 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-04-28 | 10-K | 10-K | View Document |
| 2016-04-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-04-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-04-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-04-20 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-04-06 | 8-K | 8-K CANADIAN ACQUISITION | View Document |
| 2016-03-24 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-03-24 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-03-24 | 4 | PRIMARY DOCUMENT | View Document |
| 2016-03-02 | 8-K | 8-K BMO AMENDMENT AND EMPLOYMENT COMP AMENDMENT | View Document |
| 2016-02-09 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2016-02-04 | 8-K | 8-K DISPOSITION OF FILTRATION PRODUCTS | View Document |
| 2016-02-04 | SC 13G/A | View Document | |
| 2015-12-28 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-12-08 | 10-Q | 10-Q MFRI OCTOBER 31, 2015 | View Document |
| 2015-09-18 | 10-Q | 10-Q | View Document |
| 2015-09-14 | NT 10-Q | NT 10-Q JULY 2015 | View Document |
| 2015-06-30 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-30 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-25 | 4 | PRIMARY DOCUMENT | View Document |
| 2015-06-23 | 8-K | 8-K SUBMISSION OF VOTE | View Document |
| 2015-06-23 | 4 | PRIMARY DOCUMENT | View Document |
