XML 26 R44.htm IDEA: XBRL DOCUMENT v2.4.0.8
Segment Reporting - Summarized Operating Results and Certain Financial Position Data of Company's Reportable Continuing Business Segments (Detail) (USD $)
 3 Months Ended
Apr. 30, 2014
Apr. 30, 2013
Jan. 31, 2014
Segment Reporting Information [Line Items]      
Revenues $ 51,191,000 $ 46,648,000  
Cost of revenues 41,140,000 33,620,000  
Gross profit 10,051,000 13,028,000  
Selling, general and administrative expenses 3,379,000 3,443,000  
Income (loss) from operations 6,672,000 9,585,000  
Other income, net 22,000 155,000  
Gain on deconsolidation of VIE   1,120,000  
Income (loss) before income taxes 6,694,000 10,860,000  
Income tax expense 1,894,000 3,920,000  
Net income 4,800,000 6,940,000  
Amortization of purchased intangibles 60,000 61,000  
Depreciation 142,000 129,000  
Property, plant and equipment additions 85,000 684,000  
Goodwill 18,476,000 18,476,000 18,476,000
Total assets 372,317,000 225,586,000 323,306,000
Power Industry Services [Member]
      
Segment Reporting Information [Line Items]      
Revenues 49,824,000 43,769,000  
Cost of revenues 40,049,000 31,246,000  
Telecommunications Infrastructure Services [Member]
      
Segment Reporting Information [Line Items]      
Revenues 1,367,000 2,879,000  
Cost of revenues 1,091,000 2,374,000  
Operating Segments [Member] | Power Industry Services [Member]
      
Segment Reporting Information [Line Items]      
Revenues 49,824,000 43,769,000  
Cost of revenues 40,049,000 31,246,000  
Gross profit 9,775,000 12,523,000  
Selling, general and administrative expenses 1,787,000 1,815,000  
Income (loss) from operations 7,988,000 10,708,000  
Other income, net 21,000 154,000  
Gain on deconsolidation of VIE   1,120,000  
Income (loss) before income taxes 8,009,000 11,982,000  
Amortization of purchased intangibles 60,000 61,000  
Depreciation 96,000 83,000  
Property, plant and equipment additions 28,000 673,000  
Goodwill 18,476,000 18,476,000  
Total assets 331,560,000 174,819,000  
Operating Segments [Member] | Telecommunications Infrastructure Services [Member]
      
Segment Reporting Information [Line Items]      
Revenues 1,367,000 2,879,000  
Cost of revenues 1,091,000 2,374,000  
Gross profit 276,000 505,000  
Selling, general and administrative expenses 352,000 316,000  
Income (loss) from operations (76,000) 189,000  
Income (loss) before income taxes (76,000) 189,000  
Depreciation 44,000 45,000  
Property, plant and equipment additions 7,000 11,000  
Total assets 2,118,000 3,503,000  
Other [Member]
      
Segment Reporting Information [Line Items]      
Selling, general and administrative expenses 1,240,000 1,312,000  
Income (loss) from operations (1,240,000) (1,312,000)  
Other income, net 1,000 1,000  
Income (loss) before income taxes (1,239,000) (1,311,000)  
Depreciation 2,000 1,000  
Property, plant and equipment additions 50,000    
Total assets $ 38,639,000 $ 47,264,000