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Fair Value of Financial Instruments - Summary of Investments and Cash Equivalents (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets:
Cash and Cash Equivalents	$ 29,983	$ 28,451
Total cash, cash equivalents and restricted cash	30,999	29,467	$ 50,760	$ 69,536
Total cash, cash equivalents and restricted cash
Assets:
Cash and Cash Equivalents	29,983	28,451
Cash-restricted	1,016	1,016
Total cash, cash equivalents and restricted cash	30,999	29,467
Cash and money market funds
Assets:
Cash and Cash Equivalents	29,983	28,451
Cash-restricted
Assets:
Cash-restricted	$ 1,016	$ 1,016

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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. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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