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Restructuring and Related Charges (Details Narrative) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Restructuring Cost and Reserve [Line Items]        
Additional restructuring charges   $ 294  
Severance costs   $ 375 411  
Restructuring charges included in other current liabilities   (79) (82)  
GridSense [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges payable   $ 34 38 $ 63
Additional restructuring charges $ 198 198  
Expected to be paid restructuring cost date   Dec. 31, 2016    
Severance costs   $ 10    
Payment of lease cost   (223)  
Omni Metrix [Member]        
Restructuring Cost and Reserve [Line Items]        
Restructuring charges payable   $ 204 248 239
Additional restructuring charges   96  
Expected to be paid restructuring cost date   Dec. 31, 2019    
Severance costs       45
Payment of lease cost   $ (44) $ (87) 194
Provision for lease losses       $ 96
Restructuring charges included in other current liabilities   45    
Restructuring charges included in other liabilities   $ 159