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Cash, Cash Equivalents and Short-Term Investments - Schedule of Cash and Cash Equivalents and Short-term Investments by Significant Investment Category (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Cash And Cash Equivalents And Short Term Investments [Line Items]
Cash	$ 3,702	$ 2,779
Cash and cash equivalents and Short term investments, Amortized cost	14,511	38,173
Cash and cash equivalents	14,511	38,173
Money Market Funds | Level 1
Cash And Cash Equivalents And Short Term Investments [Line Items]
Cash equivalents	$ 10,809	$ 35,394

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Cash and cash equivalents and short-term investments.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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