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): SCHEDULE OF FAIR VALUE INSTRUMENTS March 31, 2022 Quoted Prices in Active Markets for Indentical Assets Significant Other Observable Inputs Significant Unobservable Inputs Fair Value Measurements Using March 31, 2022 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Assets: Cash equivalents Money market funds 12,736 12,736 - - Commercial paper 11,090 - 11,090 - Total cash equivalents 23,826 12,736 11,090 - Short-term investments U.S. Treasury bills 32,319 32,319 - - Corporate debt securities 7,631 - 7,631 - Commercial paper 92,985 - 92,985 - Total short-term investments 132,935 32,319 100,616 - Total $ 156,761 $ 45,055 $ 111,706 $ - December 31, 2021 Quoted Prices in Active Markets for Indentical Assets Significant Other Observable Inputs Significant Unobservable Inputs Fair Value Measurements Using December 31, 2021 Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs 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 $ - 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 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 (in thousands): SUMMARY OF SHORT TERM INVESTMENT As of March 31, 2022 Maturity Amortized cost Gross unrealized gains Gross unrealized losses Estimated fair value Corporate debt securities 1 year or less $ 7,650 $ - $ (18 ) $ 7,632 Commercial paper 1 year or less 93,256 - (272 ) $ 92,984 U.S. Treasury bills 2 years or less 32,673 - (354 ) $ 32,319 $ 133,579 $ - $ (644 ) $ 132,935 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 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 March 31, 2022 and 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 March 31, 2022 and that there were no impairments 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 |