NOTE 16 - SEGMENT AND RELATED INFORMATION - (Details Narrative)	12 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Note 16 - Segment And Related Information -
Export Sales of medical equipment	41.50%	55.90%	19.60%
Foreign Revenues of service and repair of medical equipment	5.00%	4.60%	5.80%

The Companys areas of operations are principally in the United States. The Company had export sales of medical equipment amounting to 42.4% and 3.8% of product sales revenues to third parties for the years ended June 30, 2014 and 2013, respectively.

No definition available.

Name:	FONR_ExportSalesOfMedicalEquipment
Namespace Prefix:	FONR_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration