INVESTMENT IN OIL AND GAS PROPERTIES (Details) (USD $)	0 Months Ended	3 Months Ended	6 Months Ended						0 Months Ended		1 Months Ended	3 Months Ended	6 Months Ended		12 Months Ended				6 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2013	Jun. 30, 2013	Jun. 30, 2013 Dana	Dec. 31, 2013 Tullow Guinea Ltd	Nov. 20, 2012 Tullow Guinea Ltd	Dec. 31, 2012 SCS	Dec. 31, 2012 SCS Tullow Guinea Ltd	Dec. 31, 2012 Minimum SCS Tullow Guinea Ltd m	Dec. 31, 2012 Guinea concession	Dec. 31, 2013 Guinea concession bbl	Dec. 31, 2012 Guinea concession	Jun. 30, 2012 Guinea concession	Jun. 30, 2013 Guinea concession	Dec. 30, 2012 Guinea concession	Dec. 31, 2013 Guinea concession Dana	Dec. 31, 2013 Guinea concession Minimum	Dec. 31, 2013 Guinea concession Maximum
Investments in oil and gas properties
Ownership interest in Guinea Concession (as a percent)						23.00%	40.00%						37.00%				77.00%	23.00%
Capitalized costs												$ 1,200,000		$ 2,300,000
Reserves													0
Oil and Gas Properties:
Proved Oil and Gas Properties				116,753,000	116,753,000								116,753,000			116,753,000
Unproved Oil and Gas Properties													14,094,000			14,365,000
Other Equipment Costs													6,809,000			6,809,000
Total oil and gas properties				137,656,000	137,927,000								137,656,000			137,927,000
Less- Accumulated depreciation, depletion and amortization				(116,753,000)	(116,753,000)								(116,753,000)			(116,753,000)
Unevaluated properties excluded from amortization				20,903,000	21,174,000								20,903,000			21,174,000
Period over which evaluation activities of unproved properties are expected to be completed																			1 year	3 years
Full amortization of proved oil and gas properties		400,000	441,000												116,300,000
Decrease in property balance resulting from capitalized cost adjustment													300,000
Ownership interest sold (as a percent)									40.00%	40.00%
Consideration of sale of interest in PSC										27,000,000
Depth of exploration well to be drilled											2,000
Gross expenditure for an ultra-deepwater exploration well to be paid by Tullow as additional consideration									100,000,000	100,000,000
Gross expenditure for an appraisal well to be paid by Tullow as additional consideration										100,000,000
Percentage of participating interest share of costs associated with the concession obligated to be paid								40.00%
Period through which additional consideration is to be paid by Tullow										90 days
Threshold gross expenditure cap for well to be paid by the entity	100,000,000
Transaction costs			$ 257,000							$ 3,300,000