QUARTERLY RESULTS (UNAUDITED) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Selected unaudited quarter data
Depreciation	$ 82	$ 97	$ 111	$ 110	$ 119	$ 152	$ 176	$ 183
General, administrative and other operating	6,732	8,095	8,262	4,368	4,364	2,650	4,890	5,570
Gain on legal settlement	(10,734)								(10,734)
Full-Cost ceiling test write-down								441		441	116,312
Loss from operations	3,920	(8,192)	(8,373)	(4,478)	(4,483)	(2,802)	(5,066)	(6,194)	(17,123)	(18,545)	(149,201)
Net income (loss)	$ 3,925	$ (8,235)	$ (8,353)	$ (4,454)	$ (4,409)	$ (2,798)	$ (5,064)	$ (6,190)
Basic and diluted income (loss) per common share: (in dollars per share)	$ 0.19	$ (0.39)	$ (0.40)	$ (0.21)	$ (0.21)	$ (0.13)	$ (0.24)	$ (0.30)	$ (0.81)	$ (0.88)	$ (7.44)