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CASH EQUIVALENTS AND MARKETABLE SECURITIES - (Tables)
 9 Months Ended
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities The table below summarizes the Company’s cash equivalents and marketable securities (in thousands):
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Estimated
Fair Value
September 30, 2023
Assets
Cash equivalents:
Money market funds$3,417 $— $— $3,417 
Total3,417 — — 3,417 
Marketable securities:
U.S. government-sponsored entity debt securities28,655 — (18)28,637 
Commercial paper securities18,901 — (10)18,891 
Corporate debt securities1,379 — — 1,379 
Asset-backed securities8,429 — — 8,429 
U.S. treasury bills5,599 — (18)5,581 
Certificates of deposit12,684 1 (5)12,680 
Total75,647 1 (51)75,597 
Total cash equivalents and marketable securities$79,064 $1 $(51)$79,014 
December 31, 2022
Assets
Cash equivalents:
Money market funds$50,820 $— $— $50,820 
Total50,820 — — 50,820 
Marketable securities:
U.S. government-sponsored entity debt securities18,710 — (293)18,417 
Commercial paper securities101,336 22 (193)101,165 
Corporate debt securities11,760 — (90)11,670 
Asset-backed securities24,970 2 (180)24,792 
U.S. treasury bills7,950 — (12)7,938 
Certificates of deposit37,599 4 (142)37,461 
Agency bonds5,598 — (8)5,590 
Total207,923 28 (918)207,033 
Total cash equivalents and marketable securities$258,743 $28 $(918)$257,853 
Fair value of investments available-for-sale The fair value of marketable securities by contractual maturity were as follows (in thousands):
September 30,
2023		December 31,
2022
Maturing in one year or less$41,173 $177,188 
Maturing after one year through five years34,424 29,845 
Total$75,597 $207,033