NOTE 3 - ACCOUNTS RECEIVABLE, MEDICAL RECEIVABLE AND MANAGEMENT AND OTHER FEES RECEIVABLE - (Details Narrative)	3 Months Ended	9 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Note 3 - Accounts Receivable Medical Receivable And Management And Other Fees Receivable -
Net revenues derived from no-fault and personal injury protection claims	67.00%	66.00%	67.00%	66.00%
Net revenues from management and other fees charged to related PCs	10.50%	10.90%	10.80%	11.10%

Approximate per cent ofthePCs net revenues derived from no-fault and personal injury protection claims

No definition available.

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