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Investments (Tables)
 3 Months Ended
Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Schedule of Available-for-Sale Investments
The following tables summarize the Company’s debt securities available-for-sale investments at March 31, 2022 and December 31, 2021 (in thousands):

March 31, 2022
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair Value
Certificates of deposit$5,176 $1 $(13)$5,164 
U.S. Treasury securities15,768 — (40)15,728 
Commercial paper6,219 — (22)6,197 
Corporate notes and bonds8,820 — (32)8,788 
Total$35,983 $1 $(107)$35,877 

December 31, 2021
Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Fair Value
Certificates of deposit$1,351 $— $— $1,351 
U.S. Treasury securities250 — — 250 
Commercial paper8,048 — (2)8,046 
Corporate notes and bonds13,245 — (13)13,232 
Total$22,894 $— $(15)$22,879 
Schedule of Maturities of Available-for-Sale Investments
The following table summarizes the maturities of the Company’s debt securities available-for-sale investments at March 31, 2022 and December 31, 2021 (in thousands):

March 31, 2022December 31, 2021
Amortized
Cost		Fair ValueAmortized
Cost		Fair Value
Due in less than 1 year$35,348 $35,246 $22,663 $22,649 
Due in 1-3 years635 631 231 230 
Total
$35,983 $35,877 $22,894 $22,879