Annual report pursuant to Section 13 and 15(d)


12 Months Ended
Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]  
Investments Investments
At December 31, 2021 the Company had $234.2 million and nil of short and long term investments, respectively, consisting mainly of commercial paper and corporate bonds. As of December 31, 2021, $19.2 million are held to maturity debt securities which are carried at amortized cost and are approximately equal to fair market value. As of December 31, 2021, $214.9 million are available-for-sale debt securities which are carried at fair market value and are approximately equal to amortized cost. As of December 31, 2020, $150.4 million were classified as held to maturity and nil were available-for-sale.

(in thousands) December 31, 2021 December 31, 2020
Cashable Guaranteed Investment Certificate $ 3,140  $ 2,000 
Corporate Bond 21,820  40,372 
Commercial Paper 206,724  67,747 
Treasury Bill 2,494  7,999 
Treasury Bond   5,045 
Yankee Bond   2,816 
Total short term investments 234,178  125,979 
Corporate Bonds - total long term investments   24,380 
Total investments $ 234,178  $ 150,359 

Currently, the Company does not intend to sell investments that are classified as held-to-maturity and has the ability and intent to hold these investments until maturity in order to collect interest payments over the life of the investments. As of December 31, 2021 and December 31, 2020, accrued interest receivable from the investments were $0.1 million and $0.5 million, respectively recorded as part of prepaid and other current assets on the consolidated balance sheets. During the year ended December 31, 2021, the Company had $47 thousand of unrealized losses on available-for-sale securities, net of tax and nil for the years ended December 31, 2020 and 2019, which are included as a component of comprehensive loss on the consolidated statements of operations. The Company's investments as of December 31, 2021 mature at various dates through November 2022.