Consolidated Statements Of Cash Flows (USD $)
6 Months Ended 222 Months Ended
Apr. 30, 2012
Apr. 30, 2011
Apr. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net loss $ (6,989,612) $ (3,188,127) $ (80,423,387)
Adjustments to reconcile net loss to net cash used by operating activities:      
Depreciation and asset write-off 426,823 76,093 2,077,961
(Recovery) provision for uncollectible value-added taxes (808,883)   593,727
Noncash expenses     126,864
Foreign currency transaction loss (gain) 145,332 (1,898,829) 2,973,608
Common stock issued for services     1,563,574
Common stock issued for compensation and directors' fees     1,753,222
Stock options issued for compensation 630,732 661,177 9,775,361
Stock options and warrants issued for services, financing fees and directors' fees     4,769,840
(Increase) decrease in, net of merger transaction:      
Value-added tax receivable 15,246 (536,452) (3,325,851)
Restricted cash 27,815 5,229 (48,024)
Other receivables (84,587) 9,562 (153,653)
Prepaid income taxes and expenses and deposits (89,338) 10,823 (335,899)
Increase (decrease) in, net of merger transaction:      
Accounts payable 101,228 188,078 665,821
Income tax payable 12,004 5,665 23,256
Accrued liabilities and expenses (502,899) 359,091 419,224
Accrued severance costs   (184,000)  
Other liabilities     7,649
Net cash used by operating activities (7,116,139) (4,491,690) (59,536,707)
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchase of investments   (40,555) (21,609,447)
Proceeds from sale of investments     21,609,447
Cash acquired in merger with Dome Ventures     2,618,548
Equipment purchases (14,514) (11,546) (3,032,196)
Proceeds from sale of equipment   206,398 451,565
Proceeds from mining concession option payment (Note 9)     200,000
Acquisition of property concessions (818,266) (458,593) (6,621,742)
Net cash used by investing activities (832,780) (304,296) (6,383,825)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from issuance of common stock, net of offering costs 10,217,774   64,908,705
Proceeds from sales of options and warrants     949,890
Proceeds from exercise of options   152,193 188,913
Proceeds from exercise of warrants   673,343 6,350,286
Deferred offering costs 53,860 (68,375) (40,689)
Payable to joint venture partner 16,265 (442,276) 495,859
Proceeds from shareholder loans     30,000
Payment of note payable     (15,783)
Net cash provided by financing activities 10,287,899 314,885 72,867,181
Effect of exchange rates on cash and cash equivalents (20,161) (18,300) (387,931)
Net increase (decrease) in cash and cash equivalents 2,318,819 (4,499,401) 6,558,718
Cash and cash equivalents beginning of period 4,239,899 [1] 10,570,598  
Cash and cash equivalents end of period 6,558,718 6,071,197 6,558,718
SUPPLEMENTAL CASH FLOW DISCLOSURES:      
Income taxes paid 45,855   186,419
Interest paid     286,771
NON-CASH INVESTING AND FINANCING ACTIVITIES:      
Common stock issued in merger with Dome     24,840,886
Warrants issued in merger with Dome     1,895,252
Common stock issued for equipment     25,000
Common stock options issued for financing fees     276,000
Common stock options issued for non-cash options   $ 37 $ 59,947
[1] ** Derived from the audited financial statements for the year ended October 31, 2011.