Investments - Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Short-term investments:
Cost	$ 11,598	$ 27,263
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(45)	(149)
Fair Value	11,553	27,114
U.S. Treasury securities
Short-term investments:
Cost	3,014	6,013
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(13)	(43)
Fair Value	3,001	5,970
Corporate bonds
Short-term investments:
Cost	8,584	19,887
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(32)	(105)
Fair Value	$ 8,552	19,782
Commercial paper
Short-term investments:
Cost		798
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Value		798
Asset-backed securities
Short-term investments:
Cost		565
Gross Unrealized Gains		0
Gross Unrealized Losses		(1)
Fair Value		$ 564

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
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-Publisher FASB
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