Investments Securities and Fair Value Measurements - Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 116,609	$ 125,941
Gross Unrealized Gains	2	2
Gross Unrealized Losses	(2,153)	(267)
Estimated Fair Value	114,458	125,676
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	17,497	29,080
Gross Unrealized Gains	2	0
Gross Unrealized Losses	(112)	(11)
Estimated Fair Value	17,387	29,069
Agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	17,507	19,753
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(484)	(27)
Estimated Fair Value	17,023	19,726
Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	81,605	77,108
Gross Unrealized Gains	0	2
Gross Unrealized Losses	(1,557)	(229)
Estimated Fair Value	$ 80,048	$ 76,881

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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
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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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-Paragraph 2
-Subparagraph (c)
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Amortized cost excluding accrued interest, after allowance for credit loss, of 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/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Amount excluding accrued interest, of 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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