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Segment Reporting (Tables) | 3 Months Ended
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Apr. 30, 2015
Segment Reporting [Abstract] |
Summarized Operating Results and Certain Financial Position Data of Company's Reportable Business Segments | Presented below are summarized operating results and certain financial position data of the Company’s reportable business segments for the three months ended April 30, 2015 and 2014. The “Other” columns include the Company’s corporate and unallocated expenses.
Three Months Ended April 30, 2015 |  | Power Industry Services |  |  | Telecom Infrastructure Services |  |  | Other |  |  | Consolidated |
Revenues |  | $ | 82,884,000 |  |  | $ | 2,604,000 |  |  | $ | — |  |  | $ | 85,488,000 |
Cost of revenues |  |  | 62,379,000 |  |  |  | 1,942,000 |  |  |  | — |  |  |  | 64,321,000 |
Gross profit |  |  | 20,505,000 |  |  |  | 662,000 |  |  |  | — |  |  |  | 21,167,000 |
Selling, general and administrative expenses |  |  | 3,583,000 |  |  |  | 304,000 |  |  |  | 1,653,000 |  |  |  | 5,540,000 |
Income (loss) from operations |  |  | 16,922,000 |  |  |  | 358,000 |  |  |  | (1,653,000 | ) |  |  | 15,627,000 |
Other income, net |  |  | 79,000 |  |  |  | — |  |  |  | 6,000 |  |  |  | 85,000 |
Income (loss) before income taxes |  | $ | 17,001,000 |  |  | $ | 358,000 |  |  | $ | (1,647,000 | ) |  |  | 15,712,000 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,861,000 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 10,851,000 |
Amortization of purchased intangibles |  | $ | 60,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 60,000 |
Depreciation |  | $ | 75,000 |  |  | $ | 41,000 |  |  | $ | 3,000 |  |  | $ | 119,000 |
Property, plant and equipment additions |  | $ | 1,126,000 |  |  | $ | 81,000 |  |  | $ | — |  |  | $ | 1,207,000 |
Goodwill |  | $ | 18,476,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 18,476,000 |
Total assets |  | $ | 334,355,000 |  |  | $ | 4,424,000 |  |  | $ | 61,093,000 |  |  | $ | 399,872,000 |
Three Months Ended April 30, 2014 |  | Power Industry Services |  |  | Telecom Infrastructure Services |  |  | Other |  |  | Consolidated |
Revenues |  | $ | 49,824,000 |  |  | $ | 1,367,000 |  |  | $ | — |  |  | $ | 51,191,000 |
Cost of revenues |  |  | 40,049,000 |  |  |  | 1,091,000 |  |  |  | — |  |  |  | 41,140,000 |
Gross profit |  |  | 9,775,000 |  |  |  | 276,000 |  |  |  | — |  |  |  | 10,051,000 |
Selling, general and administrative expenses |  |  | 1,787,000 |  |  |  | 352,000 |  |  |  | 1,240,000 |  |  |  | 3,379,000 |
Income (loss) from operations |  |  | 7,988,000 |  |  |  | (76,000 | ) |  |  | (1,240,000 | ) |  |  | 6,672,000 |
Other income, net |  |  | 21,000 |  |  |  | — |  |  |  | 1,000 |  |  |  | 22,000 |
Income (loss) before income taxes |  | $ | 8,009,000 |  |  | $ | (76,000 | ) |  | $ | (1,239,000 | ) |  |  | 6,694,000 |
Income tax expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,894,000 |
Net income |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 4,800,000 |
Amortization of purchased intangibles |  | $ | 60,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 60,000 |
Depreciation |  | $ | 96,000 |  |  | $ | 44,000 |  |  | $ | 2,000 |  |  | $ | 142,000 |
Property, plant and equipment additions |  | $ | 28,000 |  |  | $ | 7,000 |  |  | $ | 50,000 |  |  | $ | 85,000 |
Goodwill |  | $ | 18,476,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 18,476,000 |
Total assets |  | $ | 331,560,000 |  |  | $ | 2,118,000 |  |  | $ | 38,639,000 |  |  | $ | 372,317,000 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8721-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8906-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e8736-108599 + Details
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