NOTE 8 - BUSINESS COMBINATIONS - Acquisition - TK2 Equipment Management (Details) - TK2 Equipment Management $ in Thousands	Jun. 30, 2016 USD ($)
Cash Paid	$ 4,224
Net assets at Fair Value	2,862
Business Combination Goodwill	$ 1,555

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

No definition available.

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