Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE (Details)

v3.22.1
FAIR VALUE (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Fair Value    
Investments at fair value $ 91,086 $ 111,876
U S Treasury Securities    
Fair Value    
Investments at fair value 35,170 35,366
U S Government Sponsored Enterprises Debt Securities    
Fair Value    
Investments at fair value 15,559 14,678
Corporate Bond Securities And Commercial Paper    
Fair Value    
Investments at fair value 40,357 61,832
Fair Value Measurements Recurring | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 103,449 118,718
Fair Value Measurements Recurring | Money Market Funds | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 12,363 6,842
Fair Value Measurements Recurring | U S Treasury Securities | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 35,170 35,366
Fair Value Measurements Recurring | U S Government Sponsored Enterprises Debt Securities | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 15,559 14,678
Fair Value Measurements Recurring | Corporate Bond Securities And Commercial Paper | Estimate Of Fair Value Fair Value Disclosure    
Fair Value    
Investments at fair value 40,357 61,832
Fair Value Measurements Recurring | Level 1    
Fair Value    
Investments at fair value 12,363 6,842
Fair Value Measurements Recurring | Level 1 | Money Market Funds    
Fair Value    
Investments at fair value 12,363 6,842
Fair Value Measurements Recurring | Level 2    
Fair Value    
Investments at fair value 91,086 111,876
Fair Value Measurements Recurring | Level 2 | U S Treasury Securities    
Fair Value    
Investments at fair value 35,170 35,366
Fair Value Measurements Recurring | Level 2 | U S Government Sponsored Enterprises Debt Securities    
Fair Value    
Investments at fair value 15,559 14,678
Fair Value Measurements Recurring | Level 2 | Corporate Bond Securities And Commercial Paper    
Fair Value    
Investments at fair value $ 40,357 $ 61,832