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CONTINGENCIES (Details) $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 01, 2016 USD ($) project | Jul. 31, 2018 USD ($) | Jun. 30, 2018 USD ($) | Jan. 31, 2019 USD ($) | Jan. 31, 2018 USD ($)
GPS |  |  |  |  |
Loss Contingencies |  |  |  |  |
Outstanding surety bonds |  |  |  | $ 11.1 | $ 11.1
Minimum |  |  |  |  |
Loss Contingencies |  |  |  |  |
Warranty period |  |  |  | 9 months |
Maximum |  |  |  |  |
Loss Contingencies |  |  |  |  |
Warranty period |  |  |  | 24 months |
PPS Engineers, Inc. claims lawsuit |  |  |  |  |
Loss Contingencies |  |  |  |  |
Amount paid on settlement |  | $ 0.9 |  |  |
Gain on settlement |  |  |  | $ 1.4 |
Former subcontractor | GPS |  |  |  |  |
Loss Contingencies |  |  |  |  |
Amount of arbitration panel awarded |  |  | $ 5.2 |  |
Pending Litigation | PPS Engineers, Inc. claims lawsuit |  |  |  |  |
Loss Contingencies |  |  |  |  |
Amount of damages sought by plaintiff | $ 2.3 |  |  |  |
Number of significant project locations involved in the lawsuit | project | 1 |  |  |  |

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