Nature of business and summary of significant accounting policies - Cash and cash equivalents (Details) - USD ($) $ in Millions |
Mar. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Money Market Funds | ||
| Cash and Cash Equivalents [Line Items] | ||
| Cash | $ 6.4 | $ 8.0 |
| X | ||||||||||
- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|