IMPAIRMENT TESTING (Details textuals 2) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Disclosure of information for impairment loss recognised or reversed for individual asset or cash-generating unit [abstract]
Adjustment of operating expenses for inflation, percentage	2.00%	3.00%
Adjustment of administrative expenses for inflation, percentage	2.00%	2.00%
Expected to generate normal income from delivery from shipyard	25 years
Average remaining life of tanker	15 years
Increase/decrease in tanker per day freight rates	$ 1,000
Increase/decrease in value in use of freight rates	$ 256,000
Increase/decrease in WACC percentage	1.00%
Decrease/increase in value in use of WACC	USD 108-122m
Increase/decrease in operating expenses percentage	10.00%
Decrease/increase in value in use of operating expenses	$ 181,000
Difference of market value and carrying amount	39,000
Market value based on broker values of vessels	$ 1,664,000

The amount by which a cash-generating unit's (group of units') recoverable amount exceeds its carrying amount. [Refer: Carrying amount [member]; Cash-generating units [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2018-01-01
-Paragraph 134
-Subparagraph f
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134_f_i&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 135
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-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_135_e_i&doctype=Standard
-URIDate 2018-03-16

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- Definition

The higher of an asset’s (or cash-generating unit’s) fair value less costs of disposal and its value in use. [Refer: Cash-generating units [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Number 36
-IssueDate 2018-01-01
-Paragraph 130
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- Definition

Represents term of average remaining life of tanker.

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Represents period expected to generate normal income from delivery from shipyard.

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- Definition

Represents percentage of adjustment of administrative expenses for inflation.

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- Definition

Represents percentage of adjustment of operating expenses for inflation.

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- Definition

Represents a specified rate variance in a specified key assumption operating expense in the determination of value in use.

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- Definition

Represents a specified rate variance in a specified key assumption freight rate in the determination of value in use.

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Represents a specified rate variance in a specified key assumption weighted average cost of capital in the determination of value in use.

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Represents the impact on value in use due to a specified change in the operating expense.

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- Definition

Represents the impact on value in use due to a specified change in the freight rates.

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Represents the impact on value in use due to a specified change in the weighted average cost of capital.

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