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INTANGIBLES AND OTHER ASSETS
12 Months Ended
Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangibles And Other Assets
INTANGIBLE ASSETS AND OTHER ASSETS
Long-lived intangible assets and other assets consisted of the following:
 
 
Dollars in Thousands
 
December 31, 2013
 
December 31, 2012
 
Cost
 
Accumulated
Amortization
 
Net Book
Value
 
Cost
 
Accumulated
Amortization
 
Net Book
Value
Acquired technology
$
9,009

 
$
3,175

 
$
5,834

 
$
9,009

 
$
1,910

 
$
7,099

Assay royalties
1,434

 
614

 
820

 
1,434

 
410

 
1,024

Third party payor relationships
367

 
73

 
294

 
367

 
49

 
318

Tradenames and trademarks
824

 
233

 
591

 
824

 
115

 
709

Customer relationships
652

 
54

 
598

 
652

 
11

 
641

Covenants not to compete
184

 
77

 
107

 
184

 
15

 
169

Patents
1,153

 
336

 
817

 
929

 
280

 
649

Intellectual property
170

 
36

 
134

 
170

 
15

 
155

 
$
13,793

 
$
4,598

 
$
9,195

 
$
13,569

 
$
2,805

 
$
10,764


 
 
 
 
Estimated Useful Life
Acquired technology
7 – 10 years
Assay royalties
7 years
Third party payor relationships
15 years
Tradenames and trademarks
7 years
Customer relationships
15 years
Covenants not to compete
3 years
Patents
Life of the patent
Intellectual property
7 years
    
Amortization expense for intangible assets was $1.9 million, $1.4 million and less than $1.3 million during the years ended December 31, 2013, 2012 and 2011. At December 31, 2013, the Company revised its estimate of useful lives on certain intangible assets which will cause amortization expense in 2014 to be $0.4 million lower. Amortization expense for intangible assets for each of the five succeeding fiscal years is expected to be $1.4 million, $1.3 million, $1.3 million, $1.3 million and 1.0 million for the years ended December 31, 2014, 2015, 2016, 2017 and 2018, respectively.
Other assets include U.S. security deposits and deferred tax assets, net of applicable valuation allowances.