Investments

9 Months Ended

Sep. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Investments

Investments

Our investments are classified as available-for-sale and consist of the following:

	September 30, 2022
	Amortized		Unrealized Gross				Aggregate
	Cost		Gains		Losses		Fair Value
Short-Term:
U.S. government securities	$	9,998	$	—	$	(257)	$	9,741
Short-term investments	$	9,998	$	—	$	(257)	$	9,741

	December 31, 2021
	Amortized		Unrealized Gross				Aggregate
	Cost		Gains		Losses		Fair Value
Long-Term:
U.S. government securities	$	9,993	$	—	$	(55)	$	9,938
Long-term investments	$	9,993	$	—	$	(55)	$	9,938

As of September 30, 2022 and December 31, 2021, we had no investments with a contractual maturity of greater than two years. Currently, we do not intend to sell the investments and it is not more likely than not that we will be required to sell the investments before recovery of their amortized cost bases, which may be maturity. We do not consider those investments to be other-than-temporarily impaired as of September 30, 2022. At the end of each reporting period, we evaluate potential credit impairment on available-for-sale securities in an unrealized loss position, based on the expected cash flows to be collected and the yield-to-maturity on those securities. Securities with a valuation allowance for expected credit losses and deemed uncollectible are permanently written down, and a reversal out of the valuation allowance occurs.