NOTE 3 - ACCOUNTS RECEIVABLE, MEDICAL RECEIVABLE AND MANAGEMENT AND OTHER FEES RECEIVABLE - (Details Narrative)	3 Months Ended	6 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Note 3 - Accounts Receivable Medical Receivable And Management And Other Fees Receivable -
Net revenues derived from no-fault and personal injury protection claims	66.00%	65.00%	67.00%	66.00%
Net revenues from management and other fees charged to related PCs	10.80%	10.90%	10.90%	11.20%

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