NOTE 4 - CONTRACT ASSETS AND LIABILITIES - Costs, Earnings, Billings, Uncompleted Contracts - (Details) - USD ($)	Jun. 30, 2021	Jun. 30, 2020
Regulated Operations [Abstract]
Costs incurred on uncompleted contracts	$ 294,783	$ 448,437
Estimated earnings	567,978	309,248
Costs and estimated earnings on uncompleted contracts	862,761	757,685
Less: Billings to date	877,500	604,852
Costs and estimated earnings in excess of billings on uncompleted contracts	$ (14,739)	$ 152,833

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