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Investments (Tables)
 6 Months Ended
Mar. 31, 2015
Equity [Abstract]  
Summary of Short and Long-term Investments

The following tables summarize the Company’s short- and long-term investments as of March 31, 2015, and September 30, 2014.

 

 

As of March 31, 2015

 

 

Amortized Cost

 

 

Gross Unrealized Gains

 

 

Gross Unrealized Losses

 

 

Fair Value

 

Commercial notes (due within one year)

$

19,561,172

 

 

$

784

 

 

$

(285,310

)

 

$

19,276,646

 

Commercial notes (due after one year through two years)

$

12,361,068

 

 

 

—

 

 

$

(127,628

)

 

$

12,233,440

 

Total

$

31,922,240

 

 

$

784

 

 

$

(412,938

)

 

$

31,510,086

 

 

 

As of September 30, 2014

 

 

Amortized Cost

 

 

Gross Unrealized Gains

 

 

Gross Unrealized Losses

 

 

Fair Value

 

Commercial notes (due within one year)

$

21,653,032

 

 

$

—

 

 

$

(189,830

)

 

$

21,463,202

 

Commercial notes (due after one year through two years)

$

23,088,346

 

 

 

—

 

 

$

(217,693

)

 

$

22,870,653

 

Total

$

44,741,378

 

 

$

—

 

 

$

(407,523

)

 

$

44,333,855