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v3.23.1

Capital Structure - Stock Options (Details) - USD ($) $ / shares in Units, shares in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Number of Options |  |
Options outstanding at the beginning of the period (in shares) | 6,641 |
Options Granted (in shares) | 19 |
Options Exercised (in shares) | 0 |
Options Cancelled (in shares) | (160) |
Options outstanding at the end of the period (in shares) | 6,500 |
Vested and exercisable (in shares) | 2,635 |
Weighted-Average Exercise Price |  |
Balance at the beginning of the period (in dollars per share) | $ 3.80 |
Options Granted (in dollars per share) | 1.02 |
Options Exercised (in dollars per share) | 0 |
Options Cancelled (in dollars per share) | 8.04 |
Balance at the end of the period (in dollars per share) | 3.69 |
Vested and exercisable (in dollars per share) | $ 6.67 |
Weighted-Average Remaining Contractual Term (Years) |  |
Outstanding | 5 years 25 days |
Vested and exercisable | 3 years 8 months 15 days |
Aggregate Intrinsic Value |  |
Outstanding | $ 1,000 |
Vested and exercisable | 0 |
Additional disclosures related to stock options |  |
Total intrinsic value for stock options exercisable | 0 | $ 0
Total intrinsic value for stock options exercised | $ 0 | $ 0

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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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