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Field Equipment, Net
 12 Months Ended
Dec. 31, 2017
Field Equipment [Abstract]  
Field Equipment, Net

Note 7: Field equipment, net

 

 

December 31,

 

 

 

2017

 

 

2016

 

Field equipment

 

$

15,020

 

 

$

11,167

 

Accumulated depreciation

 

 

(5,984

)

 

 

(2,359

)

Field equipment, net

 

$

9,036

 

 

$

8,808

 

 

Depreciation expense was $4,483, $3,248 and $1,555 for the years ended December 31, 2017, 2016 and 2015, respectively. Write downs of $195, $6,436, and $36 were identified for the years ended December 31, 2017, 2016 and 2015, respectively.

 

The Company made the second generation Optune system available to all patients in the United States in 2016 and manufacturing of the first generation Optune system has been terminated. In 2016, the Company recorded an impairment loss with respect to the write-down of first generation Optune system field equipment in the amount of $6,412 (finished goods and production stage goods in the amount of $4,830 and $1,582, respectively) presented in cost of revenues.