CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Deficit Accumulated During Exploration Stage [Member]
Balance at May. 31, 2001
Balance, shares at May. 31, 2001
Shares issued to incorporator		19	(19)
Shares issued to incorporator, shares		1,961,184
Balance at May. 31, 2002		19	(19)
Balance, shares at May. 31, 2002		1,961,184
Sales of common stock	125,000	50	124,950
Sales of common stock, shares		5,000,000
Shares issued for services	134,000	131	133,869
Shares issued for services, shares		13,100,000
Shares issued in exchange for mining rights	15,000	15	14,985
Shares issued in exchange for mining rights, shares		1,500,000
Net Loss	(215,924)			(215,924)
Balance at May. 31, 2003	58,076	215	273,785	(215,924)
Balance, shares at May. 31, 2003		21,561,184
Sales of common stock	230,000	19	229,981
Sales of common stock, shares		1,880,000
Shares issued for services	88,750	29	88,721
Shares issued for services, shares		2,910,000
Cancellation of shares	0	(4)	4
Cancellation of shares, shares		(400,000)
Net Loss	(313,127)			(313,127)
Balance at May. 31, 2004	63,699	259	592,491	(529,051)
Balance, shares at May. 31, 2004		25,951,184
Sales of common stock	177,500	9	177,491
Sales of common stock, shares		860,000
Shares issued for services	25,000	1	24,999
Shares issued for services, shares		100,000
Issuance of stock paid in prior year	20,000	1	19,999
Issuance of stock paid in prior year, shares		80,000
Retirement of stock due to settlement agreement		(2)	2
Retirement of stock due to settlement agreement, shares		(175,166)
Net Loss	(226,093)			(226,093)
Balance at May. 31, 2005	60,106	268	814,982	(755,144)
Balance, shares at May. 31, 2005		26,816,018
Sales of common stock	1,122,500	43	1,122,457
Sales of common stock, shares		4,332,500
Shares issued for services	96,255	3	96,252
Shares issued for services, shares		233,961
Exercise of warrants	2,500		2,500
Exercise of warrants, shares		10,000
Net Loss	(280,014)			(280,014)
Balance at May. 31, 2006	1,001,347	314	2,036,191	(1,035,158)
Balance, shares at May. 31, 2006		31,392,479
Shares issued for services	232,627	9	232,618
Shares issued for services, shares		905,355
Issuance of stock paid in prior year		3	(3)
Issuance of stock paid in prior year, shares		267,500
Retirement of stock due to settlement agreement		(5)	5
Retirement of stock due to settlement agreement, shares		(452,835)
Net Loss	(898,843)			(898,843)
Balance at May. 31, 2007	335,131	321	2,268,811	(1,934,001)
Balance, shares at May. 31, 2007		32,112,499
Sales of common stock	1,417,500	102	1,417,398
Sales of common stock, shares		10,175,000
Shares issued for services	4,009,200	48	4,009,152
Shares issued for services, shares		4,808,000
Exercise of warrants	80,000	3	79,997
Exercise of warrants, shares		320,000
Net Loss	(5,028,449)			(5,028,449)
Balance at May. 31, 2008	813,382	474	7,775,358	(6,962,450)
Balance, shares at May. 31, 2008		47,415,499
Sales of common stock	400,000	8	399,992
Sales of common stock, shares		800,000
Shares issued for services	1,014,300	19	1,014,281
Shares issued for services, shares		1,838,000
Exercise of warrants	184,998	7	184,991
Exercise of warrants, shares		740,000
Share based compensation	2,770,000		2,770,000
Net Loss	(6,964,811)			(6,964,811)
Balance at May. 31, 2009	(1,782,131)	508	12,144,622	(13,927,261)
Balance, shares at May. 31, 2009		50,793,499
Shares issued for services	1,251,978	24	1,251,954
Shares issued for services, shares		2,473,063
Share based compensation	636,656		636,656
Notes converted into shares of common stock	15,940	1	15,939
Notes converted into shares of common stock, shares		53,134
Discount on convertible notes payable	317,500		317,500
Net Loss	(4,653,712)			(4,653,712)
Balance at May. 31, 2010	(4,213,769)	533	14,366,671	(18,580,973)
Balance, shares at May. 31, 2010		53,319,696
Sales of common stock	497,750	140	497,610
Sales of common stock, shares		14,000,000
Shares issued for services	725,776	97	725,679
Shares issued for services, shares		9,670,000
Notes converted into shares of common stock	33,380	1	33,379
Notes converted into shares of common stock, shares		110,950
Partial cost of issuance of convertible notes	81,598		81,598
Shares issued for compensation	200,000	10	199,990
Shares issued for compensation, shares		1,000,000
Options granted during the year	580,000		580,000
Modification of director options	210,000		210,000
Net Loss	(3,083,077)			(3,083,077)
Balance at May. 31, 2011	(4,968,342)	781	16,694,927	(21,664,050)
Balance, shares at May. 31, 2011	78,100,646	78,100,646
Sales of common stock	615,000	62	614,938
Sales of common stock, shares		6,221,429
Shares issued for services	345,000	14	344,986
Shares issued for services, shares		1,450,000
Exercise of warrants	138,750	15	138,735
Exercise of warrants, shares		1,475,000
Notes converted into shares of common stock	2,731,356	140	2,731,216
Notes converted into shares of common stock, shares		13,960,588
Shares issued for compensation	175,000	18	174,982
Shares issued for compensation, shares		1,750,000
Options granted during the year	989,619		989,619
Stock options exercised		3	(3)
Stock options exercised, shares		350,000
Net Loss	(2,886,579)			(2,886,579)
Balance at May. 31, 2012	$ (2,860,196)	$ 1,033	$ 21,689,400	$ (24,550,629)
Balance, shares at May. 31, 2012	103,307,633	103,307,663