Document and Entity Information - shares	3 Months Ended
	Jan. 31, 2016	Mar. 09, 2016
DocumentAndEntityInformationAbstract
Entity Registrant Name	Crystal Rock Holdings, Inc.
Entity Central Index Key	0001123316
Document Type	10-Q
Document Period End Date	Jan. 31, 2016
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 Common Stock, Shares Outstanding		21,358,411
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2016