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v3.19.3.a.u2

CUSTOMER CONCENTRATIONS (Details) |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jan. 31, 2019 customer | Oct. 31, 2019 customer | Oct. 31, 2018 customer | Oct. 31, 2019 customer | Oct. 31, 2018
Accounts Receivable |  |  |  |  |
Customer Concentrations |  |  |  |  |
Number of customers | 2 |  |  | 2 |
Major Customer One | Accounts Receivable |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of consolidated accounts receivable accounted by major customer | 25.00% |  |  | 21.00% |
Major Customer Two | Accounts Receivable |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of consolidated accounts receivable accounted by major customer | 15.00% |  |  | 14.00% |
Power Services | Revenue |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  | 61.00% | 76.00% | 49.00% | 80.00%
Number of customers |  | 2 | 4 | 2 | 4
Power Services | Major Customer One | Revenue |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  | 27.00% | 20.00% | 13.00% | 18.00%
Power Services | Major Customer Two | Revenue |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  | 17.00% | 17.00% | 10.00% | 16.00%
Power Services | Major Customer Three | Revenue |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 13.00% |  | 12.00%
Power Services | Major Customer Four | Revenue |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  |  | 12.00% |  | 11.00%
Industry services | Revenue |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  | 34.00% | 21.00% | 47.00% | 17.00%
Number of customers |  | 1 |  |  |
Industry services | Major Customer One | Revenue |  |  |  |  |
Customer Concentrations |  |  |  |  |
Percentage of major customers or segments |  | 10.00% |  |  |

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