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INTANGIBLE ASSETS (Tables)
3 Months Ended
Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Prior to any impairment adjustment, intangible assets consisted of the following:
 
 
 
March 31,
2018
 
December 31,
2017
 
Patents
 
$
3,697,709
 
$
3,697,709
 
Capitalized software development
 
 
1,081,194
 
 
1,005,369
 
Accumulated amortization
 
 
(2,661,963)
 
 
(2,538,615)
 
Intangible assets, net
 
$
2,116,940
 
$
2,164,463