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Basis of Preparation And Significant Accounting Policies (Details) | 2 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 13, 2019 USD ($) $ / shares | Mar. 31, 2018 USD ($) | Jun. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Working capital deficit |  |  |  |  | $ (40,412,000) |  |  |
Provision for doubtful trade receivables |  |  |  |  | 68,000 | $ 138,000 |  |
Borrowing costs capitalised |  |  |  |  | $ 253,000 | 0 | $ 0 |
Number of Operating Segments |  |  |  |  | 1 |  |  |
Description of the nature of the benefits provided by the defined benefit plan |  |  |  |  | If the employee remains in the employment of the Company until normal retirement age, they are entitled to retirement compensation which is equal to 40% of the compensation amount that would be payable if they were dismissed at that time. |  |  |
Net defined benefit liability |  |  |  |  | $ 87,000 | 82,000 |  |
Current portion of long-term borrowings |  |  |  |  | 35,368,000 | 41,538,000 |  |
Increase/ decrease in voyage revenues |  |  |  |  | 668,000 | 540,000 | 317,000 |
Increase/ decrease in voyage expenses |  |  |  |  | 668,000 | 540,000 | 317,000 |
Proceeds from issuance of share capital |  |  |  |  | 600,000 | 9,653,000 | 0 |
Undrawn borrowing facilities |  |  |  |  | 12,800,000 | 3,000,000 |  |
Loan Balance |  |  |  |  | $ 37,163,000 | 41,660,000 |  |
Black-Scholes option pricing model |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Historical volatility for shares, significant unobservable inputs, liabilities |  |  |  |  | 80.00% |  |  |
Risk free rate |  |  |  |  | 2.48% |  |  |
Expected life |  |  |  |  | 1.89 years |  |  |
Expected Dividend Yield Significant Unobservable Inputs Liabilities |  |  |  |  | 0.00% |  |  |
Weighted average share price |  |  |  |  | $ 2.88 |  |  |
Convertible Note |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Proceeds from issuance of share capital | $ 5,000,000 |  |  |  |  |  |  |
Par value per share | $ / shares | $ 0.004 |  |  |  |  |  |  |
Firment Shipping Inc. |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Undrawn borrowing facilities |  |  |  |  | $ 12,800,000 |  |  |
Leases |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Depreciation method |  |  |  |  | straight-line basis |  |  |
Right-of-use assets |  |  |  |  | $ 674,000 |  |  |
Date as at which entity plans to apply new IFRS initially |  |  |  |  | Jan. 01, 2019 |  |  |
Title of new IFRS |  |  |  |  | IFRS 16 |  |  |
Date by which application of new IFRS is required |  |  |  |  | Jan. 01, 2019 |  |  |
Macquarie Bank and Hamburg Commercial Bank AG |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Current portion of long-term borrowings |  |  |  |  | $ 35,368,000 |  |  |
Hamburg Commercial Bank AG |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Loan Balance |  |  |  |  | $ 22,200,000 |  |  |
Vessels |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Depreciation method |  |  |  |  | straight-line basis |  |  |
Useful life |  |  |  |  | 25 years |  |  |
Vessels scrap rate |  | $ 300 | $ 200 | $ 250 |  |  |  | $ 240
Increase / (decrease) in depreciation expense due to changes in scrap rates |  |  |  |  | $ (178,000) | $ (86,000) | $ 96,000 |
Deferred dry docking costs |  |  |  |  |  |  |  |
Basis of Preparation and Significant Accounting Policies [line items] |  |  |  |  |  |  |  |
Depreciation method |  |  |  |  | straight-line basis |  |  |
Interval between vessel drydockings / special surveys |  |  |  |  | 2 years 6 months |  |  |

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