Document and Entity Information (USD $)	12 Months Ended
	Oct. 31, 2012	Jan. 18, 2013	Apr. 30, 2012
Document And Entity Information
Entity Registrant Name	Crystal Rock Holdings, Inc.
Entity Central Index Key	0001123316
Document Type	10-K
Document Period End Date	Oct. 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--10-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 10,697,241
Entity Common Stock, Shares Outstanding		21,380,731
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2012