ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - Status of Our Business, Liquidity and Going Concern - Share Purchase Agreement (Details) - USD ($)		2 Months Ended	12 Months Ended
	Jul. 12, 2017	Dec. 31, 2017	Jun. 30, 2017
Status of our Business
Total purchase price			$ 3,610,000
Subsequent Event | Forecast | CLNG | Hyperdynamics Corporation
Status of our Business
CLNG Limited's potential ownership percentage in Hyperdynamics (as a percent)		53.00%
Subsequent Event | Forecast | CLNG | Hyperdynamics Corporation | Minimum
Status of our Business
CLNG Limited's potential ownership percentage in Hyperdynamics (as a percent)		50.00%
CLNG | Subsequent Event | Forecast
Status of our Business
Total purchase price		$ 6,000,000
Guinea Concession | Subsequent Event
Status of our Business
Appraisal period	2 years