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Patents (Tables)
6 Months Ended 12 Months Ended
Dec. 31, 2016
Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]    
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Patents consist of the following:
 
  
 
 
As of December 31,
 
As of June 30,
 
 
 
2016
 
2016
 
 
 
 
 
 
 
 
 
Patents
 
$
880,000
 
$
880,000
 
Less accumulated amortization
 
 
(596,000)
 
 
(583,000)
 
Patents, net
 
$
284,000
 
$
297,000
 
Patents consist of the following:
 
 
 
June 30,
 
 
 
2016
 
2015
 
 
 
 
 
 
 
 
 
Patents
 
$
880,000
 
$
880,000
 
Less accumulated amortization
 
 
(583,000)
 
 
(251,000)
 
 
 
 
 
 
 
 
 
Patents, net
 
$
297,000
 
$
629,000