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SEGMENT REPORTING (Details) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2020 USD ($) | Oct. 31, 2019 USD ($) | Jul. 31, 2019 USD ($) | Apr. 30, 2019 USD ($) | Jan. 31, 2019 USD ($) | Oct. 31, 2018 USD ($) | Jul. 31, 2018 USD ($) | Apr. 30, 2018 USD ($) | Jan. 31, 2020 USD ($) item | Jan. 31, 2019 USD ($) | Jan. 31, 2018 USD ($) | Jan. 31, 2017 USD ($)
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |
Operating segment | item |  |  |  |  |  |  |  |  | 1 |  |  |
Revenues | $ 67,988 | $ 58,406 | $ 63,059 | $ 49,544 | $ 87,658 | $ 116,459 | $ 136,670 | $ 141,366 | $ 238,997 | $ 482,153 | $ 892,815 |
Cost of revenues |  |  |  |  |  |  |  |  | 245,817 | 399,715 | 743,490 |
Gross (loss) profit | 5,249 | 5,992 | 2,965 | (21,026) | 6,746 | 29,532 | 30,708 | 15,452 | (6,820) | 82,438 | 149,325 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 44,125 | 40,710 | 41,764 |
Impairment loss |  |  |  |  |  |  |  |  | 4,895 | 1,491 | 584 |
Income (loss) from operations | (9,938) | $ (6,143) | $ (7,073) | $ (32,686) | (4,293) | $ 18,385 | $ 20,330 | $ 5,815 | (55,840) | 40,237 | 106,977 |
Other income, net |  |  |  |  |  |  |  |  | 8,075 | 6,981 | 5,648 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (47,765) | 47,218 | 112,625 |
Income tax benefit |  |  |  |  |  |  |  |  | 7,053 | 4,651 | (40,279) |
Net (loss) income |  |  |  |  |  |  |  |  | (40,712) | 51,869 | 72,346 |
Depreciation |  |  |  |  |  |  |  |  | 3,513 | 3,422 | 2,779 |
Amortization of intangibles |  |  |  |  |  |  |  |  | 1,136 | 1,012 | 1,032 |
Property, plant and equipment additions |  |  |  |  |  |  |  |  | 7,058 | 8,599 | 4,826 |
Current assets | 421,755 |  |  |  | 416,348 |  |  |  | 421,755 | 416,348 |  |
Current liabilities | 144,034 |  |  |  | 81,316 |  |  |  | 144,034 | 81,316 |  |
Goodwill | 27,943 |  |  |  | 32,838 |  |  |  | 27,943 | 32,838 | 34,329 | $ 34,913
Total assets | 487,540 |  |  |  | 476,648 |  |  |  | 487,540 | 476,648 | 542,669 |
Other |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 7,345 | 7,277 | 9,612 |
Income (loss) from operations |  |  |  |  |  |  |  |  | (7,345) | (7,277) | (9,612) |
Other income, net |  |  |  |  |  |  |  |  | 540 | 461 | 257 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (6,805) | (6,816) | (9,355) |
Depreciation |  |  |  |  |  |  |  |  | 5 | 14 | 13 |
Property, plant and equipment additions |  |  |  |  |  |  |  |  | 11 | 3 | 2 |
Current assets | 76,794 |  |  |  | 66,071 |  |  |  | 76,794 | 66,071 |  |
Current liabilities | 1,279 |  |  |  | 968 |  |  |  | 1,279 | 968 |  |
Total assets | 84,636 |  |  |  | 67,019 |  |  |  | 84,636 | 67,019 | 60,015 |
Intercompany Eliminations |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 3,300 | 800 | 2,200 |
Power Services |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 135,729 | 367,812 | 814,544 |
Cost of revenues |  |  |  |  |  |  |  |  | 152,854 | 297,931 | 675,362 |
Gross (loss) profit |  |  |  |  |  |  |  |  | (17,125) | 69,881 | 139,182 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 26,835 | 23,741 | 23,356 |
Impairment loss |  |  |  |  |  |  |  |  | 2,072 |  |  |
Income (loss) from operations |  |  |  |  |  |  |  |  | (46,032) | 46,140 | 115,826 |
Other income, net |  |  |  |  |  |  |  |  | 7,535 | 5,120 | 5,391 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (38,497) | 51,260 | 121,217 |
Depreciation |  |  |  |  |  |  |  |  | 694 | 749 | 885 |
Amortization of intangibles |  |  |  |  |  |  |  |  | 291 | 350 | 350 |
Property, plant and equipment additions |  |  |  |  |  |  |  |  | 5,069 | 3,156 | 1,362 |
Current assets | 320,257 |  |  |  | 317,708 |  |  |  | 320,257 | 317,708 |  |
Current liabilities | 135,518 |  |  |  | 66,085 |  |  |  | 135,518 | 66,085 |  |
Goodwill | 18,476 |  |  |  | 20,548 |  |  |  | 18,476 | 20,548 | 20,548 |
Total assets | 352,034 |  |  |  | 347,189 |  |  |  | 352,034 | 347,189 | 432,932 |
Industrial Services |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 94,682 | 101,673 | 65,303 |
Cost of revenues |  |  |  |  |  |  |  |  | 85,859 | 92,097 | 58,283 |
Gross (loss) profit |  |  |  |  |  |  |  |  | 8,823 | 9,576 | 7,020 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 7,810 | 7,904 | 7,401 |
Impairment loss |  |  |  |  |  |  |  |  | 2,823 | 1,491 | 584 |
Income (loss) from operations |  |  |  |  |  |  |  |  | (1,810) | 181 | (965) |
Other income, net |  |  |  |  |  |  |  |  |  | 1,400 |  |
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (1,810) | 1,581 | (965) |
Depreciation |  |  |  |  |  |  |  |  | 2,418 | 2,293 | 1,607 |
Amortization of intangibles |  |  |  |  |  |  |  |  | 664 | 662 | 682 |
Property, plant and equipment additions |  |  |  |  |  |  |  |  | 1,638 | 4,750 | 2,837 |
Current assets | 21,766 |  |  |  | 28,878 |  |  |  | 21,766 | 28,878 |  |
Current liabilities | 6,441 |  |  |  | 13,384 |  |  |  | 6,441 | 13,384 |  |
Goodwill | 9,467 |  |  |  | 12,290 |  |  |  | 9,467 | 12,290 | 13,781 |
Total assets | 46,321 |  |  |  | 57,168 |  |  |  | 46,321 | 57,168 | 44,849 |
Telecom Services |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 8,586 | 12,668 | 12,968 |
Cost of revenues |  |  |  |  |  |  |  |  | 7,104 | 9,687 | 9,845 |
Gross (loss) profit |  |  |  |  |  |  |  |  | 1,482 | 2,981 | 3,123 |
Selling, general and administrative expenses |  |  |  |  |  |  |  |  | 2,135 | 1,788 | 1,395 |
Income (loss) from operations |  |  |  |  |  |  |  |  | (653) | 1,193 | 1,728 |
Income (loss) before income taxes |  |  |  |  |  |  |  |  | (653) | 1,193 | 1,728 |
Depreciation |  |  |  |  |  |  |  |  | 396 | 366 | 274 |
Amortization of intangibles |  |  |  |  |  |  |  |  | 181 |  |  |
Property, plant and equipment additions |  |  |  |  |  |  |  |  | 340 | 690 | 625 |
Current assets | 2,938 |  |  |  | 3,691 |  |  |  | 2,938 | 3,691 |  |
Current liabilities | 796 |  |  |  | 879 |  |  |  | 796 | 879 |  |
Total assets | $ 4,549 |  |  |  | $ 5,272 |  |  |  | $ 4,549 | $ 5,272 | $ 4,873 |

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 + Details
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- Definition 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. + Details
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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