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INTANGIBLE ASSETS
 12 Months Ended
Dec. 31, 2012
INTANGIBLE ASSETS AND GOODWILL [Abstract]  
INTANGIBLE ASSETS AND GOODWILL
NOTE 9. INTANGIBLE ASSETS AND GOODWILL

Intangible assets consist of the following (in thousands):

 
USA Segment
 
 
 
 
 
Brazil Segment
 
 
Total
 
 
Patents
 
 
Trademarks
 
 
Customer
Lists
 
 
Trademarks
 
 
Customer
Lists
 
 
Intangible Assets
 
December 31, 2012
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost
 
$
1,697
 
 
$
48
 
 
$
2,677
 
 
$
3,418
 
 
$
1,250
 
 
$
9,090
 
Accumulated amortization
 
 
(1,029
)
 
 
(38
)
 
 
(2,222
)
 
 
(2,362
)
 
 
(864
)
 
 
(6,515
)
Net book value
 
$
668
 
 
$
10
 
 
$
455
 
 
$
1,056
 
 
$
386
 
 
$
2,575
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2011
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cost
 
$
1,768
 
 
$
48
 
 
$
2,677
 
 
$
3,751
 
 
$
1,372
 
 
$
9,616
 
Accumulated amortization
 
 
(957
)
 
 
(35
)
 
 
(1,888
)
 
 
(2,056
)
 
 
(752
)
 
 
(5,688
)
Net book value
 
$
811
 
 
$
13
 
 
$
789
 
 
$
1,695
 
 
$
620
 
 
$
3,928
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Estimated useful lives
 
 
17 years
 
 
 
7 years
 
 
 
7 years
 
 
 
7 years
 
 
 
7 years
 
 
 
 
 

We purchased no intangible assets in 2012 or 2011. All changes in the cost of Brazil segment intangibles are due to foreign currency translation.  Amortization expense is expected to be $1.1 million in 2013, $1.0 million in 2014, $0.3 million in 2015, $0.1 million in 2016, $0.1 million in 2017 and $0.1 million thereafter. 
 
In 2011, we wrote off patents with a net book value of $0.7 million.  We determined the projected future cash flows were inadequate to recover the net book value of these patents.