Document and Entity Information	3 Months Ended
	Dec. 31, 2012	Jan. 31, 2013 Common Stock	Jan. 31, 2013 Class B Common Stock	Jan. 31, 2013 Class C Common Stock	Jan. 31, 2013 Preferred Stock Class A
Entity Registrant Name	Fonar Corporation
Entity Central Index Key	0000355019
Document Type	10-Q
Document Period End Date	Dec. 31, 2012
Amendment Flag	false
Current Fiscal Year End Date	--06-30
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		5,931,262	158	382,513	313,438
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2013