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8. Intangible Assets
6 Months Ended
Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets

The net carrying amount of intangible assets are as follows (in thousands):

 

   

June 30,

2020

   

December 31,

2019

 
Customer relationships   $ 1,171     $ 1,292  
Less: accumulated amortization     (873 )     (827 )
Total   $ 298     $ 465  

 

Amortization expense is included in general and administrative expenses and totaled $16,000 and $13,000 for the three months ended June 30, 2020 and 2019, respectively, and $46,000 and $27,000 for the six months ended June 30, 2020 and 2019, respectively.