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v3.21.2

NOTE 17 - SEGMENT AND RELATED INFORMATION (Details Narrative) | 12 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting [Abstract] |  |
[custom:ExportSalesOfMedicalEquipmentPercentage] | 69.30% | 20.20%
[custom:ForeignRevenuesOfServiceAndRepairOfMedicalEquipmentPercentage] | 4.50% | 5.60%

X
- References No definition available. + Details
Name: | FONR_ExportSalesOfMedicalEquipmentPercentage
Namespace Prefix: | FONR_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | FONR_ForeignRevenuesOfServiceAndRepairOfMedicalEquipmentPercentage
Namespace Prefix: | FONR_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration