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Product and Geographic Information
 12 Months Ended
Dec. 31, 2016
Segment Reporting [Abstract]  
Product and Geographic Information
PRODUCT AND GEOGRAPHIC INFORMATION
 
During 2013, we sold our pool products business. During 2014, we shifted our focus away from the turnkey solutions business to align our resources with developing and selling our LED products and completed our exit of that business in September 2015. With the exit from EFLS and sale of CLL, we have aligned our resources and focused our efforts on the sale of LED lighting products, in particular our military and commercial tubular LED (“TLED”) lines of products, into targeted vertical markets. Our products are sold primarily in the United States through a combination of direct sales employees, independent sales representatives and distributors. We currently operate in a single industry segment, developing and selling our energy-efficient light-emitting diode (“LED”) lighting products into the military maritime and commercial markets.

The following table provides a breakdown of product net sales from continuing operations for the years indicated (in thousands):
 
 
Year ended December 31,
 
2016
 
2015
 
2014
 
 
 
 
 
 
Commercial
$
14,809

 
$
14,156

 
$
5,712

Military maritime
16,189

 
50,128

 
16,913

R&D services
—

 
119

 
75

Total net sales
$
30,998

 
$
64,403

 
$
22,700


  
A geographic summary of net sales from continuing operations is as follows (in thousands):
  
 
For the year ended December 31,
 
2016
 
2015
 
2014
 
 
 
 
 
 
United States Domestic
$
29,840

 
$
64,251

 
$
22,667

International
1,158

 
152

 
33

Total net sales
$
30,998

 
$
64,403

 
$
22,700


  
At December 31, 2016 and 2015, approximately 99 percent of our long-lived assets, which consist of property and equipment, were located in the United States.