Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 5,570	$ 1,117
Prepaid and other current assets	863	686
Total Current Assets	6,433	1,803
Property, plant and equipment, at cost:
Property, plant and equipment	98,454	96,407
Less accumulated depreciation, depletion and impairment	(65,724)	(65,566)
Net property, plant and equipment	32,730	30,841
Restricted cash	3,941	4,011
Total Assets	43,104	36,655
Current Liabilities:
Accounts payable	796	1,243
Accrued liabilities	1,680	1,786
Current portion of asset retirement obligations	196
Total Current Liabilities	2,672	3,029
Asset retirement obligations, net of current portion	4,000	3,834
Derivative liability - convertible loan		2,169
Convertible loan, net of discount - related party	4,345	1,025
Other long-term liabilities and deferred credits	950	1,354
Total Liabilities	11,967	11,411
Commitments and Contingencies
Stockholders' Equity:
Common stock, 200,000,000 shares authorized, $.001 par value; Issued shares - 25,288,113 and 19,824,071, respectively Outstanding shares - 25,192,669 and 19,820,258, respectively	25	20
Paid-in capital	233,524	216,703
Accumulated deficit	(202,154)	(191,470)
Less: Treasury stock (95,444 and 3,813 shares, respectively), at cost	(258)	(9)
Total Stockholders' Equity	31,137	25,244
Total Liabilities and Stockholders' Equity	$ 43,104	$ 36,655