Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements for Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes fair value measurements at March 31, 2019 and September 30, 2018 for assets and liabilities measured at fair value on a recurring basis:

March 31, 2019:

	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	161,639,208	$	—	$	—	$	161,639,208
Short-term investments	$	56,450,065	$	—	$	—	$	56,450,065
Long-term investments	$	68,239,526	$	—	$	—	$	68,239,526
Contingent Consideration	$	—	$	—	$	—	$	—

September 30, 2018:

	Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	30,133,213	$	—	$	—	$	30,133,213
Short-term investments	$	45,971,126	$	—	$	—	$	45,971,126
Long-term investments	$	—	$	—	$	—	$	—
Contingent Consideration	$	—	$	—	$	—	$	—