DESCRIPTION OF BUSINESS AND LIQUIDITY AND CAPITAL RESOURCES (Details Narrative) - USD ($)	12 Months Ended
Jun. 30, 2022	Jul. 01, 2015
Controlling Interest [Member]
Direct ownership interest percentage	70.80%
Controlling Interest [Member]
The ownership interest of Imperial Management Services after reorganization of newly expanded HDM		24.20%
The ownership interest of Health Management Corporation of America after reorganization of newly expanded HDM		45.80%
Noncontrolling Interest [Member]
The ownership interest of the original investors of HDM		30.00%
Investors ownership interest percentage	29.20%
Class B Controlling Interests [Member]
Purchase of interests from Class A ($)	$ 546,000

This represents the amount of direct purchase of noncontrolling interests during year.

No definition available.

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Data Type:	xbrli:monetaryItemType
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- Definition

This represents the rate of hmca ownership size of imperial management services percent during year.

+ References

No definition available.

+ Details

Name:	FONR_HmcaOwnershipSizeOfImperialManagementServicesPercent
Namespace Prefix:	FONR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This represents the rate of investors ownership interest during year.

+ References

No definition available.

+ Details

Name:	FONR_InvestorsOwnershipInterest
Namespace Prefix:	FONR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This represents the rate of ownership interest after reorganization for health management corporation of America of newly expanded hdm percent during year.

+ References

No definition available.

+ Details

Name:	FONR_OwnershipInterestAfterReorganizationForHealthManagementCorporationOfAmericaOfNewlyExpandedHdmPercent
Namespace Prefix:	FONR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This represents the rate of ownership interest of original investors of hdm during year.

+ References

No definition available.

+ Details

Name:	FONR_OwnershipInterestOfOriginalInvestorsOfHdm
Namespace Prefix:	FONR_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

+ Details

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Balance Type:	na
Period Type:	instant

- Details

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- Details

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- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	us-gaap_StatementEquityComponentsAxis=FONR_ClassBControllingInterestsMember
Namespace Prefix:
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