Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Vehicles [abstract] | |||
| Ships |
326 875
USD
|
338 284
USD
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current net defined benefit asset |
511,000
USD
|
429,000
USD
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
993,000
USD
|
61,000
USD
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
182,000
USD
|
354,000
USD
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
23 637
USD
|
12 637
USD
|
23 547
USD
|
| Miscellaneous current assets [abstract] | |||
| Other current assets |
4,384,000
USD
|
590,000
USD
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
206 906
USD
|
225 004
USD
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
18 890
USD
|
18 843
USD
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other current payables [abstract] | |||
| Current trade payables |
516,000
USD
|
348,000
USD
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
583,000
USD
|
494,000
USD
|
— |
| Issued capital [abstract] | |||
| Issued capital |
1 976
USD
|
1 976
USD
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
80 362
USD
|
101 477
USD
|
— |
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
65 588
USD
|
65 588
USD
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
356 746
USD
|
352 649
USD
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
29 196
USD
|
13 642
USD
|
— |
| Current liabilities |
28 670
USD
|
27 680
USD
|
— |
| Assets less current liabilities [abstract] |