Annual report pursuant to Section 13 and 15(d)

Intangible Assets

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Intangible Assets
 12 Months Ended
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets

4. Intangible Assets

 

Intangible assets consisted of the following (in thousands):

 

    Year Ended December 31,  
    2017     2016  
Customer relationships   $ 3,989     $ 3,990  
Developed technology     4,685       4,685  
Other patents and patent applications     562       562  
Trademarks     350       350  
      9,587       9,587  
Less: accumulated amortization     (6,936 )     (6,400 )
    $ 2,651     $ 3,187  

 

Amortization expense is expected to approximate $0.5 million per year during 2018 through 2021, $0.4 million in 2022 and a total of $0.1 million thereafter, until fully amortized. Amortization expense totaled approximately $0.5 million for both of the years ended December 31, 2017 and 2016.