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INVENTORY (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Inventory composition [Abstract]      
Raw materials $ 2,771,000 $ 3,281,000  
Work-in-process 506,000 782,000  
Finished goods 1,263,000 1,043,000  
Inventory, net 4,540,000 5,106,000  
Inventory Write-down 1,121,000 357,000 0
Inventory write off - GridSense 152,000 349,000  
Inventory write off - Power Generation 11    
Inventory write off - USSI 958,000    
Inventory Valuation Reserves $ 1,139,000 $ 316,000