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Accumulated Other Comprehensive Loss (Tables)
 3 Months Ended
Dec. 31, 2017
Comprehensive Loss [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
The Company's accumulated other comprehensive loss balances at December 31, 2017 and September 30, 2017 consisted of the following:
 
December 31, 2017
 
September 30, 2017
Foreign currency translation adjustment
$
(146,213
)
 
$
(155,491
)
Unrealized loss on marketable securities
(649
)
 
(559
)
Accumulated other comprehensive loss
$
(146,862
)
 
$
(156,050
)