Income taxes (Schedule of Components of Loss From Continuing Operations by Domestic and Foreign Jurisdictions) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Income Tax Disclosure [Abstract] | |||
| Domestic | $ (7,672) | $ (12,667) | $ (20,446) |
| Foreign | |||
| Loss from Continuing Operations before Income Taxes | $ (7,672) | $ (12,667) | $ (20,446) |
| X | ||||||||||
- Definition Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|