Document and Entity Information	3 Months Ended
	Oct. 31, 2011	Dec. 05, 2011
Document and Entity Information
Entity Registrant Name	Siga Resources Inc.
Document Type	10-Q
Document Period End Date	Oct. 31, 2011
Amendment Flag	false
Entity Central Index Key	0001386936
Current Fiscal Year End Date	--07-31
Entity Common Stock, Shares Outstanding		45,025,000
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q1