Financial Instruments and Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2022

Schedule of Available-for-sale Securities and Equity Securities

Cash equivalents, which are classified as equity securities, restricted cash, and equity securities consisted of the following (in thousands):

	September 30, 2022								December 31, 2021
	Cost		Unrealized Gain		Unrealized (Loss)		Estimated Fair Value		Cost		Unrealized Gain		Unrealized (Loss)		Estimated Fair Value
Money market funds	$	255	$	—	$	—	$	255	$	5,003	$	—	$	—	$	5,003
U.S. treasury securities		9,921		—		—		9,921		—		—		—		—
Equity securities⁽¹⁾		246		—		—		246		246		—		—		246
	$	10,422	$	—	$	—	$	10,422	$	5,249	$	—	$	—	$	5,249
Classified as:
Cash equivalents							$	10,001							$	5,003
Restricted cash								175								—
Other assets								246								246
Total cash equivalents, restricted cash, and other assets							$	10,422							$	5,249

⁽¹⁾ The Company’s equity securities included in other assets consisted of its investment in a privately held company. The Company recognizes its private company equity securities at cost minus impairments, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. No such impairments or changes were noted for any period presented.

Schedule of assets and liabilities measured at fair value on a recurring basis

The fair values of the Company’s assets and liabilities, which are measured at fair value on a recurring basis, were determined using the following inputs (in thousands):

			Fair Value Measurements at
			Reporting Date Using
			Quoted Prices in		Significant
			Active Markets		Other		Significant
			for Identical		Observable		Unobservable
			Assets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
At September 30, 2022
Money market funds	$	255	$	—	$	255	$	—
U.S. treasury securities		9,921		—		9,921		—
	$	10,176	$	—	$	10,176	$	—

At December 31, 2021
Money market funds	$	5,003	$	—	$	5,003	$	—