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GOODWILL AND INTANGIBLE ASSETS (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Goodwill [Line Items]    
Goodwill, Impairment Loss $ (1,930,000)  
Excess of fair value of reporting unit over carrying value 5,000,000 1,100
Goodwill [Roll Forward]    
Goodwill 6,630,000 4,637,000
Goodwill, Acquired During Period   1,930,000
Goodwill, Translation Adjustments (271,000) 63,000
Goodwill 4,429,000 6,630,000
Percentage excess of fair value of reporting unit over carrying value   17.00%
Energy & Security Sonar Solutions Segment [Member]
    
Goodwill [Line Items]    
Goodwill, Impairment Loss 0  
Goodwill [Roll Forward]    
Goodwill 541,000 527,000
Goodwill, Acquired During Period   0
Goodwill, Translation Adjustments 40,000 14,000
Goodwill 581,000 541,000
GridSense segment [Member]
    
Goodwill [Line Items]    
Goodwill, Impairment Loss 0  
Goodwill [Roll Forward]    
Goodwill 2,757,000 2,708,000
Goodwill, Acquired During Period   0
Goodwill, Translation Adjustments (311,000) 49,000
Goodwill 2,446,000 2,757,000
USSI segment [Member]
    
Goodwill [Line Items]    
Goodwill, Impairment Loss 0  
Goodwill [Roll Forward]    
Goodwill 1,402,000 1,402,000
Goodwill, Acquired During Period   0
Goodwill, Translation Adjustments 0 0
Goodwill 1,402,000 1,402,000
Power Generation Monitoring segment [Member]
    
Goodwill [Line Items]    
Goodwill, Impairment Loss 1,517,000  
Goodwill [Roll Forward]    
Goodwill 1,517,000 0
Goodwill, Acquired During Period   1,517,000
Goodwill, Translation Adjustments 0 0
Goodwill 0 1,517,000
All Other Segments [Member]
    
Goodwill [Line Items]    
Goodwill, Impairment Loss 413,000 [1]  
Goodwill [Roll Forward]    
Goodwill 413,000 [1] 0 [1]
Goodwill, Acquired During Period   413,000 [1]
Goodwill, Translation Adjustments 0 [1] 0 [1]
Goodwill $ 0 [1] $ 413,000 [1]
[1] Results for the Cathodic Protection segment are included in "Other" in Segment Reporting (see Note 21).