|
Segment Reporting (Details) (USD $)
|
3 Months Ended |
|
|
Apr. 30, 2013
|
Apr. 30, 2012
|
Jan. 31, 2013
|
| Summarized operating results and certain financial position data of Company's reportable continuing business segments |
|
|
|
| Net revenues |
$ 46,648,000 |
$ 63,690,000 |
|
| Cost of revenues |
33,620,000 |
53,589,000 |
|
| Gross profit |
13,028,000 |
10,101,000 |
|
| Selling, general and administrative expenses |
3,443,000 |
3,028,000 |
|
| Income (loss) from operations |
9,585,000 |
7,073,000 |
|
| Gain on deconsolidation of variable interest entity |
1,120,000 |
|
|
| Other income (expense), net |
155,000 |
(9,000) |
|
| Income (loss) before income taxes |
10,860,000 |
7,064,000 |
|
| Income tax expense |
3,920,000 |
2,517,000 |
|
| Income from continuing operations |
6,940,000 |
4,547,000 |
|
| Amortization of purchased intangibles |
61,000 |
61,000 |
|
| Depreciation |
129,000 |
117,000 |
|
| Property, plant and equipment additions |
684,000 |
1,164,000 |
|
| Goodwill |
18,476,000 |
18,476,000 |
18,476,000 |
| Total assets |
225,586,000 |
224,689,000 |
234,724,000 |
|
Power Industry Services [Member]
|
|
|
|
| Summarized operating results and certain financial position data of Company's reportable continuing business segments |
|
|
|
| Net revenues |
43,769,000 |
57,728,000 |
|
| Cost of revenues |
31,246,000 |
48,984,000 |
|
| Gross profit |
12,523,000 |
8,744,000 |
|
| Selling, general and administrative expenses |
1,815,000 |
1,558,000 |
|
| Income (loss) from operations |
10,708,000 |
7,186,000 |
|
| Gain on deconsolidation of variable interest entity |
1,120,000 |
|
|
| Other income (expense), net |
154,000 |
(9,000) |
|
| Income (loss) before income taxes |
11,982,000 |
7,177,000 |
|
| Amortization of purchased intangibles |
61,000 |
61,000 |
|
| Depreciation |
83,000 |
58,000 |
|
| Property, plant and equipment additions |
673,000 |
1,026,000 |
|
| Goodwill |
18,476,000 |
18,476,000 |
|
| Total assets |
174,819,000 |
177,183,000 |
|
|
Telecommunications Infrastructure Services [Member]
|
|
|
|
| Summarized operating results and certain financial position data of Company's reportable continuing business segments |
|
|
|
| Net revenues |
2,879,000 |
5,962,000 |
|
| Cost of revenues |
2,374,000 |
4,605,000 |
|
| Gross profit |
505,000 |
1,357,000 |
|
| Selling, general and administrative expenses |
316,000 |
440,000 |
|
| Income (loss) from operations |
189,000 |
917,000 |
|
| Income (loss) before income taxes |
189,000 |
917,000 |
|
| Depreciation |
45,000 |
58,000 |
|
| Property, plant and equipment additions |
11,000 |
138,000 |
|
| Total assets |
3,503,000 |
4,819,000 |
|
|
Other [Member]
|
|
|
|
| Summarized operating results and certain financial position data of Company's reportable continuing business segments |
|
|
|
| Selling, general and administrative expenses |
1,312,000 |
1,030,000 |
|
| Income (loss) from operations |
(1,312,000) |
(1,030,000) |
|
| Other income (expense), net |
1,000 |
|
|
| Income (loss) before income taxes |
(1,311,000) |
(1,030,000) |
|
| Depreciation |
1,000 |
1,000 |
|
| Total assets |
$ 47,264,000 |
$ 42,687,000 |
|