INVESTMENTS - Amortized cost, gross unrealized gains and losses, allowance for credit losses, and fair value (Details) $ in Thousands	9 Months Ended
Sep. 30, 2022 USD ($)
Investment securities available for sale:
Amortized Cost	$ 14,668
Gross Unrealized Loss	(36)
Allowance For Credit Losses	0
Fair Value	14,632
Commercial paper
Investment securities available for sale:
Amortized Cost	9,529
Fair Value	9,529
Corporate bonds
Investment securities available for sale:
Amortized Cost	200
Gross Unrealized Loss	(1)
Fair Value	199
U.S. Treasury securities
Investment securities available for sale:
Amortized Cost	4,939
Gross Unrealized Loss	(35)
Fair Value	$ 4,904

Amount of unrealized loss 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563

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Amount excluding accrued interest, of allowance for credit loss 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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Amortized cost excluding accrued interest, before 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).

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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).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124258926&loc=SL82898722-210454

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