Investments (Tables)

3 Months Ended

Dec. 31, 2013

Summary of Short and Long-term Investments

The following tables summarize the Company’s short and long-term investments as of December 31, 2013, and September 30, 2013.

	As of December 31, 2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Commercial notes (due within one year)	$	15,912,757	$	—	$	(103,924	)	$	15,808,833
Commercial notes (due after one year through two years)	$	9,837,846		—	$	(113,292	)	$	9,724,554
Total	$	25,750,603	$	—	$	(217,216	)	$	25,533,387

	As of September 30, 2013
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Commercial notes (due within one year)	$	9,030,261	$	7,500	$	(39,281	)	$	8,998,480
Commercial notes (due after one year through two years)	$	1,702,153		—	$	(2,362	)	$	1,699,791
Total	$	10,732,414	$	7,500	$	(41,643	)	$	10,698,271