NOTE 3 - ACCOUNTS RECEIVABLE, MEDICAL RECEIVABLE AND MANAGEMENT AND OTHER FEES RECEIVABLE (Details Narrative)	3 Months Ended	9 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Receivables [Abstract]
Net revenues derived from no-fault and personal injury protection claims	72.00%	67.00%	66.00%	67.00%
Net revenues from management and other fees charged to related PCs	12.40%	10.50%	11.50%	10.80%

Net revenues from management and other fees charged to the related PCs accounted for approximately 12.4% and 10.5% of the consolidated net revenues for the three months ended March 31, 2020 and 2019, respectively. Net revenues from management and other fees charged to the related PCs accounted for approximately 11.5% and 10.8% of the consolidated net revenues for the nine months ended March 31, 2020 and 2019, respectively.

No definition available.

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