The number of medical centers.

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- Definition

The number of single-unit facilities.

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No definition available.

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- Definition

For an unclassified balance sheet, amount of receivables arising from transactions with related parties.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Note 1 - Basis of Presentation (Details Textual)	3 Months Ended		9 Months Ended
Note 1 - Basis of Presentation (Details Textual)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Apr. 27, 2022	Dec. 31, 2021 USD ($)
Number of Reportable Segments			2
GK Peru [Member]
Accounts Receivable, Related Parties	$ 1,046,000		$ 1,046,000			$ 0
Newco [Member]
Equity Method Investment, Ownership Percentage					85.00%
OR21, LLC [Member]
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Guadalupe [Member] \| Newco [Member]
Equity Method Investment, Ownership Percentage					15.00%
Architectural Design Company [Member] \| OR21, LLC [Member]
Equity Method Investment, Ownership Percentage	50.00%		50.00%
Gamma Knife Center Ecuador S.A. (GKCE) [Member] \| Gamma Knife Units [Member]
Number of Medical Centers	12		12
Rental Income from Medical Services [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 4,101,000	$ 3,477,000	$ 12,382,000	$ 10,892,000
Patient Income [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 727,000	$ 622,000	$ 2,327,000	$ 2,047,000
Gamma Knife and PBRT Equipment [Member]
Number of Medical Centers	13		13
Lima, Peru and Guayaquil, Ecuador [Member]
Number of Single-unit Facilities	2		2