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Summary of Significant Accounting Policies - Restricted Cash (Details) - USD ($) $ in Thousands	1 Months Ended
	Aug. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 31, 2019	Apr. 30, 2016
Restricted Cash
Repayment of principal debt balance	$ 2,400
Face amount		$ 5,000			$ 5,000	$ 1,000
Restricted cash required reserve		0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents		26,630	$ 12,337
Total		$ 26,630	$ 12,337	$ 36,284

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- Definition

Amount of required reserve of restricted cash.

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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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Face (par) amount of debt instrument at time of issuance.

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The net cash inflow or outflow in aggregate debt due to repayments and proceeds from additional borrowings.

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