Segment Information - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Oil and gas revenues	$ 130	$ 317	$ 212	$ 455
Oil and gas operating expenses	(38)	(76)	(80)	(112)
Arctic Star plant operating expenses	(175)		(521)
Selling, general and administrative expenses	(830)	(827)	(2,493)	(1,989)
Depreciation, depletion and amortization	(264)	(194)	(544)	(327)
Interest and other expenses	(24)	(63)	(67)	(63)
Interest and other income - related parties		372		796
Interest and other income	8	50	9	92
Segment loss from continuing operations	(1,193)	(421)	(3,484)	(1,148)
Capital Expenditures	135	2,809	507	5,102
Total Assets	25,563	61,901	25,563	61,901	$ 34,980
HKN
Oil and gas revenues	130	317	212	455
Oil and gas operating expenses	(38)	(76)	(80)	(112)
Selling, general and administrative expenses	(719)	(623)	(2,372)	(1,560)
Depreciation, depletion and amortization	(59)	(135)	(122)	(212)
Interest and other income - related parties		417	153	909
Interest and other income	17	50	20	92
Segment loss from continuing operations	(669)	(50)	(2,189)	(428)
Capital Expenditures	10	(42)	91	3
Total Assets	18,809	47,036	18,809	47,036
BWI
Arctic Star plant operating expenses	(175)		(521)
Selling, general and administrative expenses	(111)	(204)	(121)	(429)
Depreciation, depletion and amortization	(205)	(59)	(422)	(115)
Interest and other expenses	(24)	(108)	(220)	(176)
Interest and other income	(9)		(11)
Segment loss from continuing operations	(524)	(371)	(1,295)	(720)
Capital Expenditures	125	2,851	416	5,099
Total Assets	7,422	22,903	7,422	22,903
Eliminations
Interest and other expenses		45	153	113
Interest and other income - related parties		(45)	(153)	(113)
Total Assets	$ (668)	$ (8,038)	$ (668)	$ (8,038)