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Capital Stock - Common Stock Warrants (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2019 | May 31, 2018 | Dec. 31, 2022 | Dec. 31, 2021
Ten Year Warrants Issued in May 2018 |  |  |  |
Warrants |  |  |  |
Exercise price of warrants (in dollars per share) |  |  | $ 23.69 | $ 23.69
Ten Year Warrants Issued in May 2018 | SVB Loan |  |  |  |
Warrants |  |  |  |
Aggregate number of unregistered shares of common stock called by warrants (in shares) |  | 6,332 |  |
Exercise price of warrants (in dollars per share) |  | $ 23.69 |  |
Exercisable period of warrants |  | 10 years |  |
Estimated fair value of warrants |  | $ 0.1 |  |
Exercise of warrant |  |  | 0 |
Common stock warrant, Exercise price $14.71 per share, Issued March 2019 |  |  |  |
Warrants |  |  |  |
Exercise price of warrants (in dollars per share) |  |  | $ 14.71 | $ 14.71
Common stock warrant, Exercise price $14.71 per share, Issued March 2019 | SVB Loan |  |  |  |
Warrants |  |  |  |
Aggregate number of unregistered shares of common stock called by warrants (in shares) | 4,845 |  |  |
Exercise price of warrants (in dollars per share) | $ 14.71 |  |  |
Exercisable period of warrants | 10 years |  |  |
Estimated fair value of warrants | $ 0.1 |  |  |
Exercise of warrant |  |  | 0 |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
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- 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. + References No definition available. + Details
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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
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- Definition Fair value portion of warrants not settleable in cash classified as equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Represents the exercisable period for warrants beginning on the date of issuance, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Shares of stock issued as a result of the exercise of warrants. + References No definition available. + Details
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