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FIXED ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
FIXED ASSETS
Total costs	$ 2,338		$ 2,338		$ 2,017
Less: accumulated depreciation and amortization	(1,091)		(1,091)		(1,003)
Total fixed assets, net	1,247		1,247		1,014
Depreciation and amortization	16,450	$ 18,185	33,336	$ 36,358
Detail of Fixed Assets, Excluding Vessels
FIXED ASSETS
Depreciation and amortization	73	$ 68	144	$ 136
Vessel equipment
FIXED ASSETS
Total costs	1,696		1,696		1,375
Furniture and fixtures
FIXED ASSETS
Total costs	462		462		462
Computer equipment
FIXED ASSETS
Total costs	$ 180		$ 180		$ 180

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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