Document and Entity Information (USD $)	12 Months Ended
	Apr. 30, 2012	Jul. 06, 2012	Oct. 31, 2011
Document and Entity Information [Abstract]
Entity Registrant Name	INTERNATIONAL LOTTERY & TOTALIZATOR SYSTEMS INC
Entity Central Index Key	0000354813
Current Fiscal Year End Date	--04-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 1,078,128
Entity Common Stock, Shares Outstanding		12,962,999
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Apr. 30, 2012