NOTE 3 – ACCOUNTS RECEIVABLE, MEDICAL RECEIVABLE AND MANAGEMENT AND OTHER FEES RECEIVABLE (Details Narrative)	12 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Receivables [Abstract]
[custom:PercentageOfPcsNetRevenueDerivedFromNofaultAndPersonalInjuryProtectionClaims]	65.00%	66.00%
[custom:PercentageOfConsolidatedNetRevenueFromManagementFees]	12.00%	12.00%

Percentage of PCs net revenue derived from nofault and personal injury protection claims.

No definition available.

Name:	FONR_PercentageOfPcsNetRevenueDerivedFromNofaultAndPersonalInjuryProtectionClaims
Namespace Prefix:	FONR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration