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GOODWILL AND INTANGIBLE ASSETS (Tables)
 6 Months Ended
Jun. 30, 2012
GOODWILL AND INTANGIBLE ASSETS [Abstract]  
Schedule of Goodwill [Table Text Block]
The changes in the carrying amounts of goodwill by segment from December 31, 2011 to June 30, 2012 were as follows:
 
 
 
Energy & Security Sonar Solutions segment
 
GridSense segment
 
USSI segment
 
Power Generation Monitoring segment
 
Cathodic Protection segment*
 
Total
Balance as of December 31, 2011
 
$
527

 
$
2,708

 
$
1,402

 
$
—

 
$
—

 
$
4,637

Goodwill recorded in the acquisition of OmniMetrix (see Note 3)
 
—

 
—

 
—

 
1,517

 
413

 
1,930

Translation adjustment
 
(14
)
 
9

 
—

 
—

 
—

 
(5
)
Balance as of June 30, 2012
 
$
513

 
$
2,717

 
$
1,402

 
$
1,517

 
$
413

 
$
6,562
Schedule of Finite-Lived Intangible Assets by Major Class [Table Text Block]
The changes in the carrying amounts of and accumulated amortization of intangible assets from December 31, 2011 to June 30, 2012 were as follows:

 
 
Energy &
Security Sonar
Solutions
segment
 
GridSense segment
 
USSI segment
 
Power Generation Monitoring segment
 
Cathodic Protection segment**
 
 
 
 
Cost
 
A.A.*
 
Cost
 
A.A.*
 
Cost
 
A.A.*
 
Cost
 
A.A.*
 
Cost
 
A.A.*
 
Total
Balance as of December 31, 2011
 
$
519

 
$
(274
)
 
$
2,748

 
$
(543
)
 
$
2,565

 
$
(235
)
 
$
—

 
$
—

 
$
—

 
$
—

 
$
4,780

Acquisition of license
 
—

 
—

 
—

 
—

 
150

 
—

 
—

 
—

 
—

 
—

 
150

Intangibles recorded in the acquisition of OmniMetrix (see Note 3)
 
—

 
—

 
—

 
—

 
—

 
—

 
4,385

 
—

 
1,196

 
—

 
5,581

Amortization
 
—

 
(41
)
 
—

 
(162
)
 
—

 
(70
)
 
—

 
(132
)
 
—

 
(51
)
 
(456
)
Cumulative translation adjustment
 
(13
)
 
9

 
6

 
(1
)
 
—

 
—

 
—

 
—

 
—

 
—

 
1

Balance as of June 30, 2012
 
$
506

 
$
(306
)
 
$
2,754

 
$
(706
)
 
$
2,715

 
$
(305
)
 
$
4,385

 
$
(132
)
 
$
1,196

 
$
(51
)
 
$
10,056

Weighted average estimated useful lives in years
 
6
 
10
 
20
 
13
 
9