Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions |
Mar. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Business Organization and Nature of Operations [Abstract] | |||
| U.S. treasury bills | $ 8.7 | $ 9.8 | $ 21.3 |
| Cash equivalents | 3.9 | 3.9 | $ 0.7 |
| Unrecognized stock option compensation expense | $ 3.0 | $ 4.2 |
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- References No definition available.
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- Definition Amount of 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Debt (bills, notes or bonds) that are issued by the government of the United States which are 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. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. No definition available.
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