CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended		123 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Loss	$ (3,157)	$ (4,156)	$ (117,804)
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and amortization	107	91	1,751
Interest expense	64	60	478
Equity compensation for employees and directors	810	1,039	17,622
(Increase) decrease in deposits, prepaid expenses and other	(4)	62	(17)
Increase (decrease) in accounts payable and accrued liabilities	18	(3,292)	(7,285)
(Decrease) increase in post closure reclamation and remediation costs	(4)	(12)	374
Services and expenses paid with common stock			1,990
Repricing of warrants			965
Write downs of development and deposits			8,819
(Increase) in restricted cash held for electricity transmission			(12,005)
Net cash used by operating activities	(2,166)	(6,208)	(105,112)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase and development of mining properties, land and water rights	(3,330)	(2,272)	(124,152)
Deposits on property, plant and equipment	(630)	(6)	(68,537)
Proceeds from option to purchase agreement		285	1,150
Purchase of securities			(137)
(Increase) in restricted cash held for reclamation bonds			(642)
Cash provided by sale of marketable securities			246
Net cash used by investing activities	(3,960)	(1,993)	(192,072)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of stock, net of issuance costs	558	19,337	228,277
Net (decrease) increase in leased assets	(38)	(50)	94
(Increase) in capitalized debt issuance costs		(431)	(3,136)
Proceeds from debt			10,000
Cash proceeds from POS-Minerals Corporation			100,000
Cash paid to POS-Minerals Corporation for purchase price adjustment			(2,994)
Net cash provided by financing activities	520	18,856	332,241
Net (decrease) increase in cash and cash equivalents	(5,606)	10,655	35,057
Cash and cash equivalents, beginning of period	40,709	53,571	46
Cash and cash equivalents, end of period	35,103	64,226	35,103
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Equity compensation capitalized as development	181	(34)	6,639
Restricted cash held for reclamation bond acquired in an acquisition			491
Post closure reclamation and remediation costs and accounts payable assumed in an acquisition			263
Common stock and warrants issued for property and equipment			1,586
Accrued portion of capitalized debt issuance costs	2,066		2,066
Accrued portion of advance royalties			8,950
Accrued portion of payments to the Agricultural Sustainability Trust			$ 4,000