CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013
Current assets:
Cash and cash equivalents	$ 23,138	$ 26,468
Available-for-sale securities	15,189	15,383
Accounts receivable - joint interest	589	754
Prepaid expenses	459	637
Other current assets		37
Total current assets	39,375	43,279
Property and equipment, net of accumulated depreciation of $1,572 and $1,462	707	710
Oil and gas properties, using full-cost accounting:
Proved properties	116,753	116,753
Unevaluated properties excluded from amortization	20,885	21,174
Total oil and gas properties	137,638	137,927
Less- accumulated depreciation, depletion and amortization	(116,753)	(116,753)
Oil and gas properties, using full-cost accounting	20,885	21,174
Other Assets:
Restricted cash	19,192	19,190
Deposits	15	15
Total assets	80,174	84,368
Current liabilities:
Accounts payable and accrued expenses	22,573	22,602
Total current liabilities	22,573	22,602
Other non-current liabilities	80	92
Total liabilities	22,653	22,694
Commitments and contingencies (Note 7)
Shareholders' equity:
Preferred stock, $0.001 par value; 20,000,000 authorized, 0 shares issued and outstanding
Common stock, $0.001 par value, 43,750,000 shares authorized; 21,046,591 and 21,046,591 shares issued and outstanding, respectively	169	169
Additional paid-in capital	316,519	316,235
Accumulated other comprehensive loss	(77)	(94)
Accumulated deficit	(259,090)	(254,636)
Total shareholders' equity	57,521	61,674
Total liabilities and shareholders' equity	$ 80,174	$ 84,368