OPERATIONS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Costs and expenses
General and administrative	$ 4,431	$ 5,230	$ 15,786	$ 15,849
Production taxes	2,593	2,601	7,690	6,290
Previously Reported Balance
Costs and expenses
Costs of operations		3,544		8,684
General and administrative		3,182		10,836
Exploration and business development		1,105		2,619
Reclass Adjustment
Costs and expenses
Costs of operations		(3,544)		(8,684)
General and administrative		2,048		5,013
Production taxes		2,601		6,290
Exploration and business development		$ (1,105)		$ (2,619)