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Patents (Tables)
3 Months Ended
Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Patents consist of the following:
 
 
 
As of September 30,
 
As of June 30,
 
 
 
2016
 
2016
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Patents
 
$
880,000
 
$
880,000
 
Less accumulated amortization
 
 
(590,000)
 
 
(583,000)
 
 
 
 
 
 
 
 
 
Patents, net
 
$
290,000
 
$
297,000