CONTRACT ASSETS AND LIABILITIES - Costs, Earnings, Billings, Uncompleted Contracts - (Details) - USD ($)	Jun. 30, 2022	Jun. 30, 2021
Regulated Operations [Abstract]
Costs incurred on uncompleted contracts		$ 294,783
Estimated earnings		567,978
Costs and estimated earnings on uncompleted contracts		862,761
Less: Billings to date		877,500
Costs and estimated earnings in excess of billings on uncompleted contracts		$ (14,739)

Costs and estimated earnings on uncompleted contracts in excess of billings means the current asset as of the closing date, as properly recorded on seller's balance sheet in accordance with GAAP, representing the amount, in the aggregate, earned on contracts but not yet invoiced to customers, as determined in accordance with GAAP.

No definition available.

Name:	FONR_CostsAndEstimatedEarningsOnUncompletedContracts
Namespace Prefix:	FONR_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant