Cash, Cash Equivalents and Investments (Tables)

6 Months Ended

Jun. 30, 2023

Fair Value Disclosures [Abstract]

Summary of Fair Values of Cash, Cash Equivalents, and Short-Term Investments Measured at Fair Value on Recurring Basis

The following tables categorize the fair values of cash, cash equivalents, short-term investments and long-term investments measured at fair value on a recurring basis on our balance sheets (in thousands):

	June 30, 2023		December 31, 2022
Cash and cash equivalents:
Cash	$	2,026	$	3,986
Money market funds		9,329		10,988
Repurchase agreements		—		9,000
Government and agency notes		11,295		20,605
Total cash and cash equivalents	$	22,650	$	44,579
Short-term investments:
Certificates of deposit	$	4,218	$	5,390
Municipal notes		—		506
Corporate notes		1,575		12,411
Government and agency notes		59,122		27,295
Total short-term investments	$	64,915	$	45,602
Long-term investments:
Certificates of deposit	$	—		712
Government and agency notes		—		2,866
Total long-term investments	$	—	$	3,578

Equity investments without readily determinable fair values assessed under the measurement alternative

Equity investments without readily determinable fair value include ownership rights that either (i) do not meet the definition of in-substance common stock or (ii) do not provide the Company with control or significant influence and these investments do not have readily determinable fair values.

During the six months ended June 30, 2023, the Company received approximately $78,000 in equity investments without readily determinable fair values of Lighthouse, Inc. in exchange for the Legacy Assets, inclusive of additional equity securities by Lighthouse in the three months ended June 30, 2023$8,000 of additional equity investments issued during the three months ended June 30, 2023. As of June 30, 2023, the Company has not recorded any cumulative upward adjustments or cumulative impairments for its equity investments without readily determinable fair values.