Cash and Cash Equivalents and Investments (Details 1) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value
Debt Securities, Available-for-Sale, Current	$ 79,936
Cash and Cash Equivalents
Fair Value
Gross Unrealized Gains		$ 0
Gross Unrealized Losses		0
Estimated Fair Value		46,345
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	0
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	1
Debt Securities, Available-for-Sale, Amortized Cost, Current	26,000	46,345
Debt Securities, Available-for-Sale, Current	26,001
U.S. Treasury Securities
Fair Value
Estimated Fair Value		73,680
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	142	342
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	9	0
Debt Securities, Available-for-Sale, Amortized Cost, Current	70,894	74,022
Debt Securities, Available-for-Sale, Current	70,761
Total Short-term Investments
Fair Value
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	173	428
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	9	0
Debt Securities, Available-for-Sale, Amortized Cost, Current	80,100	92,440
Debt Securities, Available-for-Sale, Current	79,936	92,012
Total Cash and Cash Equivalents and Investments
Fair Value
Gross Unrealized Gains		0
Gross Unrealized Losses		(428)
Estimated Fair Value		138,357
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	173
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	10
Debt Securities, Available-for-Sale, Amortized Cost, Current	106,100	138,785
Debt Securities, Available-for-Sale, Current	105,937
Corporate Debt Securities
Fair Value
Estimated Fair Value		18,332
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	31	86
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax	0	0
Debt Securities, Available-for-Sale, Amortized Cost, Current	9,206	$ 18,418
Debt Securities, Available-for-Sale, Current	$ 9,175

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).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481830/320-10-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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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), classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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