Short-term Investments

6 Months Ended

Mar. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Short-term Investments

3. Short-term Investments

The Company classifies its short-term investments as available-for-sale securities. Available-for-sale securities are carried at fair market value with net unrealized gains and losses reported as a component of accumulated other comprehensive loss in stockholders’ equity. For the three and six months ended March 31, 2022, the Company realized losses of $11,000 and $18,000, respectively, from the sale of short-term investments. No gains or losses were realized during the three and six months ended March 31, 2021 from the sale of short-term investments.

The Company’s short-term investments were composed of the following (in thousands):

	As of March 31, 2022 (in thousands)
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Short-term investments:
Corporate bonds	$	3,682	$	—	$	(22	)	$	3,660

	As of September 30, 2021 (in thousands)
	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
Short-term investments:
Corporate bonds	$	9,511	$	—	$	(15	)	$	9,496

The Company’s short-term investments at March 31, 2022 had contractual maturities ranging from April 2022 to March 2023.