Cost of sales (Details) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Cost of sales. | ||
| Captain costs | $ 8,035,494 | $ 6,347,514 |
| Captain bonuses | 10,113 | 22,045 |
| Captain deductions | (44,722) | (48,930) |
| Tolls and fines | 2,119 | |
| Cost of sales | $ 8,000,885 | $ 6,322,748 |
| X | ||||||||||
- Definition The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of captain bonuses. No definition available.
|
| X | ||||||||||
- Definition Amount of captain costs. No definition available.
|
| X | ||||||||||
- Definition Amount of captain deductions. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of tolls and fines. No definition available.
|