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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in Carrying Amounts of Goodwill by Segment

The changes in the carrying amounts of goodwill by segment from December 31, 2012 to December 31, 2014 were as follows:

 

    Energy & Security Sonar Solutions segment     GridSense segment     M2M segment     PM segment*     Total  
Balance at December 31, 2012   $ 541     $ 2,757     $ 1,517     $ 413     $ 5,228  
Impairment     —       —       (1,517 )     (413 )     (1,930 )
Translation adjustment     40       (311 )     —       —       (271 )
Balance at December 31, 2013     581       2,446       —       —       3,027  
Impairment     —       (1,773 )     —       —       (1,773 )
Translation adjustment     (63 )     (160 )     —       —       (223 )
Balance at December 31, 2014   $ 518     $ 513     $ —     $ —     $ 1,031  

 

* Results for the Pipeline Monitoring (“PM”) segment are included in “Other” in Segment Reporting (see Note 17).
Changes in Carrying Amounts and Accumulated Amortization of Intangible Assets

The changes in the carrying amounts of intangible assets and associated accumulated amortization from December 31, 2012 to December 31, 2014 were as follows:

 

    Energy & Security Sonar Solutions segment     GridSense segment     M2M segment     PM segment**        
    Cost     A.A.*     Cost     A.A.*     Cost     A.A.*     Cost     A.A.*     Total  
Balance as of December 31, 2012   $ 532     $ (364 )   $ 2,777     $ (873 )   $ 4,385     $ (309 )   $ 1,196     $ (118 )   $ 7,226  
Amortization     —       (82 )     —       (264 )     —       (252 )     —       (101 )     (699 )
Impairment     —       —       —       —       (4,385 )     561       (1,196 )     219       (4,801 )
Sale of Bushing IQ (see Note 4(c))     —       —       (322 )     263       —       —       —       —       (59 )
Cumulative translation adjustment     40       (36 )     (184 )     63       —       —       —       —       (117 )
Balance as of December 31, 2013     572       (482 )     2,271       (811 )     —       —       —       —       1,550  
Amortization     —       (82 )     —       (200 )     —       —       —       —       (282 )
Cumulative translation adjustment     (61 )     53       (96 )     47       —       —       —       —       (57 )
Balance as of December 31, 2014   $ 511     $ (511 )   $ 2,175     $ (964 )   $ —     $ —     $ —     $ —     $ 1,211  
Weighted average estimated useful lives in years                     11.1                                          

 

* Accumulated amortization

** Results for the PM segment are included in “Other” in Segment Reporting (see Note 17).