| GOODWILL AND OTHER INTANGIBLE ASSETS | 
NOTE 7. GOODWILL AND OTHER INTANGIBLE ASSETS 
Goodwill and finite-lived intangible assets, net consisted of the following at June 30, 2018 and December 31, 2017: 
  
| 
   
 | 
   
 | 
 2018 
 | 
   
 | 
   
 | 
 2017 
 | 
   
 | 
 
| 
 Goodwill 
 | 
   
 | 
 $ 
 | 
 1,091,000 
 | 
   
 | 
   
 | 
 $ 
 | 
 1,091,000 
 | 
   
 | 
 
| 
 Finite-lived intangible assets: 
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
 
| 
 Patents 
 | 
   
 | 
   
 | 
 13,475,000 
 | 
   
 | 
   
 | 
   
 | 
 13,475,000 
 | 
   
 | 
 
| 
 Customer relationships 
 | 
   
 | 
   
 | 
 3,400,000 
 | 
   
 | 
   
 | 
   
 | 
 3,400,000 
 | 
   
 | 
 
| 
 Trademarks 
 | 
   
 | 
   
 | 
 2,880,967 
 | 
   
 | 
   
 | 
   
 | 
 2,880,967 
 | 
   
 | 
 
| 
 Non-compete agreements 
 | 
   
 | 
   
 | 
 660,000 
 | 
   
 | 
   
 | 
   
 | 
 660,000 
 | 
   
 | 
 
| 
 Internally-developed software 
 | 
   
 | 
   
 | 
 109,968 
 | 
   
 | 
   
 | 
   
 | 
 102,968 
 | 
   
 | 
 
| 
      Other intangible assets, gross 
 | 
   
 | 
   
 | 
 20,525,935 
 | 
   
 | 
   
 | 
   
 | 
 20,518,935 
 | 
   
 | 
 
| 
 Less: accumulated amortization 
 | 
   
 | 
   
 | 
 (10,908,590 
 | 
 ) 
 | 
   
 | 
   
 | 
 (10,157,126 
 | 
 ) 
 | 
 
| 
      Other intangible assets, net 
 | 
   
 | 
   
 | 
 9,617,345 
 | 
   
 | 
   
 | 
   
 | 
 10,361,809 
 | 
   
 | 
 
| 
      Goodwill and other intangible assets, net 
 | 
   
 | 
 $ 
 | 
 10,708,345 
 | 
   
 | 
   
 | 
 $ 
 | 
 11,452,809 
 | 
   
 | 
 
 
 
  
For the six months ended June 30, 2018 and 2017 amortization expense related to the finite-lived intangible assets was $751,464 and $750,632, respectively. 
Estimated future amortization expense is as follows: 
  
| 
 Twelve months Ending June 30, 
 | 
   
 | 
 Total 
 | 
   
 | 
 
| 
 2019 
 | 
   
 | 
 $ 
 | 
 1,501,207 
 | 
   
 | 
 
| 
 2020 
 | 
   
 | 
   
 | 
 1,492,626 
 | 
   
 | 
 
| 
 2021 
 | 
   
 | 
   
 | 
 1,411,884 
 | 
   
 | 
 
| 
 2022 
 | 
   
 | 
   
 | 
 1,390,947 
 | 
   
 | 
 
| 
 2023 
 | 
   
 | 
   
 | 
 537,231 
 | 
   
 | 
 
| 
 Thereafter 
 | 
   
 | 
   
 | 
 3,283,450 
 | 
   
 | 
 
| 
 Total amortization 
 | 
   
 | 
 $ 
 | 
 9,617,345 
 | 
   
 | 
 
 
 
  
 
 |