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FAIR VALUE OF FINANCIAL INSTRUMENTS
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
FAIR VALUE OF FINANCIAL INSTRUMENTS

(3) FAIR VALUE OF FINANCIAL INSTRUMENTS

 

The following tables summarize the Company’s financial assets measured at fair value on a recurring basis and their respective input levels based on the fair value hierarchy (in thousands):

 

   December 31,
2021
   Quoted Prices in Active Markets for Identical Assets (Level 1)   Significant Other Observable Inputs (Level 2)   Significant Unobservable Inputs (level 3) 
       Fair Value Measurements Using 
   December 31,
2021
  

Quoted Prices in Active Markets for Identical

Assets
(Level 1)

   Significant Other Observable Inputs
(Level 2)
   Significant Unobservable Inputs (Level 3) 
Assets:                    
Cash equivalents                    
Money market funds  $39,653   $39,653   $-   $- 
Commercial paper   14,448    -    14,448    - 
Total cash equivalents   54,101    39,653    14,448    - 
                     
Short-term investments                    
U.S. Treasury bills   25,135    25,135    -    - 
Corporate debt securities   10,715    -    10,715      
Commercial paper   77,328    -    77,328    - 
Total short-term investments   113,178    25,135    88,043           - 
                     
Total   $167,279   $64,788   $102,491   $- 

 

The Company’s cash as of December 31, 2020, of $4.6 million, represented a Level 1 asset.

 

 

Cash Equivalents and Short-Term Investments

 

Financial assets measured at fair value on a recurring basis consist of the Company’s cash equivalents and short-term investments. Cash equivalents consisted of cash, money market funds and commercial paper, and short-term investments consisted of U.S. Treasury bills, corporate debt securities and commercial paper. The Company obtains pricing information from its investment manager and generally determines the fair value of investment securities using standard observable inputs, including reported trades, broker/dealer quotes, and bids and/or offers.

 

The following tables summarize the Company’s short-term investments as of December 31, 2021 (in thousands):

 

   As of December 31, 2021 
   Maturity  Amortized cost   Gross unrealized gains   Gross unrealized losses   Estimated fair value 
Corporate debt securities  1 year or less  $10,726   $-   $(11)  $10,715 
Commercial paper  1 year or less   77,328    9    (9)   77,328 
U.S. Treasury bills  2 years or less   25,183    -    (48)   25,135 
      $113,237   $9   $(68)  $113,178 

 

As of December 31, 2020, the Company had no short-term investments.

 

The Company considers whether unrealized losses have resulted from a credit loss or other factors. The unrealized losses on the Company’s available-for-sale securities as of December 31, 2021 were caused by fluctuations in market value and interest rates as a result of the economic environment and not credit risk. The Company concluded that an allowance for credit losses was unnecessary as of December 31, 2021. It is neither management’s intention to sell nor is it more likely than not that the Company will be required to sell these investments prior to recovery of their cost basis or recovery of fair value. Unrealized gains and losses are included in accumulated other comprehensive loss.

 

The Company excludes accrued interest from both the fair value and the amortized cost basis of the available-for-sale debt securities for the purposes of identifying and measuring an impairment and to not measure an allowance for expected credit losses for accrued interest receivables. Accrued interest receivable is written off through net realized investment gains (losses) at the time the issuer of the bond defaults or is expected to default on payment. It is the Company’s policy to present the accrued interest receivable balance as part of prepaid expenses and other current assets in the balance sheets. Accrued interest receivable related to short-term investments was $0.1 million as of December 31, 2021.

 

Convertible Promissory Notes

 

The Company had no liabilities measured using significant unobservable inputs (Level 3) for the year ended December 31, 2021. The following table presents the changes in estimated fair value of the Company’s Level 3 liabilities for the year ended December 31, 2020 (in thousands):

 

   Convertible Promissory Notes 
Balance at December 31, 2019  $2,500 
Issuance of convertible promissory notes, related party   2,500 
Change in fair value of convertible promissory notes, related party   644 
Exchange of convertible promissory notes (Note 5)   (5,644)
Balance at December 31, 2020  $-