Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Aug. 22, 2014	Dec. 31, 2013
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jun. 30, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	TECH
Entity Registrant Name	TECHNE CORP /MN/
Entity Central Index Key	0000842023
Current Fiscal Year End Date	--06-30
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		37,007,203
Entity Public Float			$ 2.7