Document and Entity Information (USD $)	12 Months Ended
	Nov. 30, 2014	Feb. 06, 2015	May 31, 2013
Document and Entity Information
Entity Registrant Name	GRIFFIN LAND & NURSERIES INC
Entity Central Index Key	0001037390
Document Type	10-K
Document Period End Date	Nov. 30, 2014
Amendment Flag	false
Current Fiscal Year End Date	--11-30
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 73,673,000
Entity Common Stock, Shares Outstanding		5,149,574
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY