Note 16 - Income Taxes (Details Textual) - USD ($)
$ in Thousands |
Dec. 31, 2021 |
Dec. 31, 2020 |
| Statement Line Items [Line Items] |
|
|
| Deductible temporary differences for which no deferred tax asset is recognised |
$ 106,671
|
$ 111,716
|
| Country of domicile [member] |
|
|
| Statement Line Items [Line Items] |
|
|
| Cash and cash equivalents held by subsidiaries |
58
|
33
|
| Current tax liabilities |
|
0
|
| Country of domicile [member] | Non-capital loss carry forwards [member] |
|
|
| Statement Line Items [Line Items] |
|
|
| Deductible temporary differences for which no deferred tax asset is recognised |
49,322
|
49,947
|
| Country of domicile [member] | Capital loss carry forwards [member] |
|
|
| Statement Line Items [Line Items] |
|
|
| Deductible temporary differences for which no deferred tax asset is recognised |
0
|
943
|
| MEXICO |
|
|
| Statement Line Items [Line Items] |
|
|
| Unused tax losses for which no deferred tax asset recognised |
$ 59,552
|
$ 49,837
|