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Stockholders' Equity (Tables)
6 Months Ended
Mar. 31, 2015
Equity [Abstract]  
Summary of Information About Warrants

The following table summarizes information about warrants outstanding at March 31, 2015:

 

Exercise prices

 

Number of 
Warrants

 

 

Remaining
Life in Years

 

$

70.60

 

 

94,897

 

 

 

2.1

 

$

5.00

 

 

390,625

 

 

 

0.5

 

$

5.09

 

 

239,534

 

 

 

0.2

 

$

1.38

 

 

24,324

 

 

 

0.7

 

$

4.16

 

 

1,000

 

 

 

1.7

 

$

3.25

 

 

334,347

 

 

 

1.4

 

$

2.12

 

 

75,000

 

 

 

2.7

 

$

1.83

 

 

277,284

 

 

 

2.7

 

Total warrants outstanding

 

 

1,437,011