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Stockholders' Equity (Tables)
3 Months Ended
Dec. 31, 2017
Equity [Abstract]  
Summary of Information About Warrants

The following table summarizes information about warrants outstanding at December 31, 2017:

 

Exercise prices

 

Number of 
Warrants

 

 

Remaining
Life in Years

 

$

2.12

 

 

 

75,000

 

 

 

0.2

 

$

1.83

 

 

 

11,023

 

 

 

0.1

 

$

7.14

 

 

 

80,000

 

 

 

0.5

 

Total warrants outstanding

 

 

166,023