Segment Information - Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Oil and gas revenues	$ 82us-gaap_OilAndGasRevenue	$ 138us-gaap_OilAndGasRevenue
Oil and gas operating expenses	(42)us-gaap_CostOfGoodsSoldOilAndGas	(36)us-gaap_CostOfGoodsSoldOilAndGas
Arctic Star plant operating expenses	(346)HKNI_PlantOperatingCostsAndExpenses
Selling, general and administrative expenses	(1,663)	(1,162)
Depreciation, depletion and amortization	(280)	(133)
Interest and other expenses	(46)us-gaap_OtherNonoperatingExpense
Interest and other income - related parties		424HKNI_InterestAndOtherIncomeRelatedParty
Interest and other income	4us-gaap_OtherNonoperatingIncome	42us-gaap_OtherNonoperatingIncome
Segment loss from continuing operations	(2,291)	(727)
Capital Expenditures	372	2,293
Total Assets	28,597us-gaap_Assets	61,120us-gaap_Assets	34,980us-gaap_Assets
HKN
Oil and gas revenues	82	138
Oil and gas operating expenses	(42)	(36)
Selling, general and administrative expenses	(1,653)	(937)
Depreciation, depletion and amortization	(63)	(77)
Interest and other expenses	(1)
Interest and other income - related parties	153	492
Interest and other income	4	42
Segment loss from continuing operations	(1,520)	(378)
Capital Expenditures	81	45
Total Assets	32,741	45,756
BWI
Arctic Star plant operating expenses	(346)
Selling, general and administrative expenses	(10)	(225)
Depreciation, depletion and amortization	(217)	(56)
Interest and other expenses	(198)	(68)
Segment loss from continuing operations	(771)	(349)
Capital Expenditures	291	2,248
Total Assets	7,679	19,538
Eliminations
Interest and other expenses	153	68
Interest and other income - related parties	(153)	(68)
Total Assets	$ (11,823)	$ (4,174)

Interest revenue and other income from related party.

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Recurring costs associated with normal plant operations.

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Total costs related to oil and gas produced and sold during the reporting period.

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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.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.

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Aggregate revenue during the period related to oil and gas business activities.

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The aggregate amount of other expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating expense recognized during the period. Such amounts may include: (a) unusual costs, (b) loss on foreign exchange transactions, (c) losses on securities (net of profits), and (d) miscellaneous other expense items.

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The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items.

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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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