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SEGMENT REPORTING (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 31, 2016 | Jul. 31, 2015 | Jul. 31, 2016 | Jul. 31, 2015 | Jan. 31, 2016
Segment Reporting Information |  |  |  |  |
Revenues | $ 162,495 | $ 97,434 | $ 292,843 | $ 182,921 |
Cost of revenues | 118,483 | 68,941 | 220,529 | 133,261 |
Gross profit | 44,012 | 28,493 | 72,314 | 49,660 |
Impairment loss | 1,979 |  | 1,979 |  |
Selling, general and administrative expenses | 7,534 | 4,848 | 14,581 | 10,387 |
Income (loss) from operations | 34,499 | 23,645 | 55,754 | 39,273 |
Other income, net | 556 | 128 | 593 | 212 |
Income (loss) before income taxes | 35,055 | 23,773 | 56,347 | 39,485 |
Income tax expense | 11,756 | 7,939 | 18,928 | 12,800 |
Net income | 23,299 | 15,834 | 37,419 | 26,685 |
Amortization of intangibles | 200 | 104 | 521 | 164 |
Depreciation | 484 | 140 | 918 | 258 |
Property, plant and equipment additions | 1,635 | 1,297 | 1,612 | 2,503 |
Current assets | 423,914 |  | 423,914 |  | $ 350,612
Current liabilities | 223,699 |  | 223,699 |  | 187,712
Goodwill | 34,780 | 22,887 | 34,780 | 22,887 | 37,405
Total assets | 481,094 | 380,058 | 481,094 | 380,058 | $ 409,791
Power Industry Services |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Revenues | 143,422 | 93,471 | 251,521 | 176,355 |
Cost of revenues | 100,035 | 66,136 | 183,733 | 128,515 |
Gross profit | 43,387 | 27,335 | 67,788 | 47,840 |
Impairment loss | 1,979 |  | 1,979 |  |
Selling, general and administrative expenses | 4,065 | 2,849 | 7,298 | 6,432 |
Income (loss) from operations | 37,343 | 24,486 | 58,511 | 41,408 |
Other income, net | 525 | 301 | 538 | 379 |
Income (loss) before income taxes | 37,868 | 24,787 | 59,049 | 41,787 |
Amortization of intangibles | 104 | 104 | 251 | 164 |
Depreciation | 160 | 95 | 289 | 170 |
Property, plant and equipment additions | 788 | 1,285 | 840 | 2,410 |
Current assets | 303,789 |  | 303,789 |  |
Current liabilities | 207,634 |  | 207,634 |  |
Goodwill | 20,548 | 22,887 | 20,548 | 22,887 |
Total assets | 326,789 | 310,410 | 326,789 | 310,410 |
Telecommunications Infrastructure Services |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Revenues | 1,746 | 3,963 | 3,585 | 6,566 |
Cost of revenues | 1,331 | 2,805 | 2,691 | 4,746 |
Gross profit | 415 | 1,158 | 894 | 1,820 |
Selling, general and administrative expenses | 301 | 415 | 628 | 718 |
Income (loss) from operations | 114 | 743 | 266 | 1,102 |
Income (loss) before income taxes | 114 | 743 | 266 | 1,102 |
Depreciation | 43 | 42 | 84 | 82 |
Property, plant and equipment additions | 142 | 10 | 168 | 91 |
Current assets | 5,379 |  | 5,379 |  |
Current liabilities | 687 |  | 687 |  |
Total assets | 5,840 | 2,910 | 5,840 | 2,910 |
Industrial Fabrication And Field Services |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Revenues | 17,327 |  | 37,737 |  |
Cost of revenues | 17,117 |  | 34,105 |  |
Gross profit | 210 |  | 3,632 |  |
Selling, general and administrative expenses | 1,487 |  | 3,121 |  |
Income (loss) from operations | (1,277) |  | 511 |  |
Income (loss) before income taxes | (1,277) |  | 511 |  |
Amortization of intangibles | 96 |  | 270 |  |
Depreciation | 278 |  | 539 |  |
Property, plant and equipment additions | 703 |  | 602 |  |
Current assets | 21,003 |  | 21,003 |  |
Current liabilities | 13,206 |  | 13,206 |  |
Goodwill | 14,232 |  | 14,232 |  |
Total assets | 52,130 |  | 52,130 |  |
Other |  |  |  |  |
Segment Reporting Information |  |  |  |  |
Selling, general and administrative expenses | 1,681 | 1,584 | 3,534 | 3,237 |
Income (loss) from operations | (1,681) | (1,584) | (3,534) | (3,237) |
Other income, net | 31 | (173) | 55 | (167) |
Income (loss) before income taxes | (1,650) | (1,757) | (3,479) | (3,404) |
Depreciation | 3 | 3 | 6 | 6 |
Property, plant and equipment additions | 2 | 2 | 2 | 2 |
Current assets | 93,743 |  | 93,743 |  |
Current liabilities | 2,172 |  | 2,172 |  |
Total assets | $ 96,335 | $ 66,738 | $ 96,335 | $ 66,738 |

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