Represents the number of significant project locations involved in the lawsuit.

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

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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.

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Amount of damages awarded to the plaintiff in the legal matter.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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LEGAL MATTERS (Details) $ in Thousands		1 Months Ended		6 Months Ended
LEGAL MATTERS (Details) $ in Thousands	Feb. 01, 2016 USD ($) project	Jul. 31, 2018 USD ($)	Jun. 30, 2018 USD ($)	Jul. 31, 2018 USD ($)
Loss Contingencies
Gain on settlement				$ 1,400
PPS Engineers, Inc. claims lawsuit
Loss Contingencies
Amount paid on settlement		$ 900
Gain on settlement				$ 1,400
PPS Engineers, Inc. claims lawsuit \| Pending Litigation
Loss Contingencies
Amount of damages sought by plaintiff	$ 2,300
Number of significant project locations involved in the lawsuit \| project	1
Former subcontractor \| GPS
Loss Contingencies
Amount of arbitration panel awarded			$ 5,200