11. OTHER NONCURRENT ASSETS

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The following table summarizes the Company’s components of other noncurrent assets (in thousands):

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During the year ended December 31, 2020, the Company made an investment in a privately held company in the form of convertible debt for $3.0 million. Under the terms of this agreement, the debt will be converted to common stock of the investee upon the closing of a qualified financing, acquisition or change in control. The full principal balance plus 3% annual interest is due in two years and does not allow voluntary prepayment. As of December 31, 2020, the balance of other investments was $3.0 million. As of December 31, 2019, there were no other investments.