The number of single-unit facilities.

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Amount of annual prepayment under operating lease.

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Amount of operating lease expense per month. Excludes sublease income.

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In reference to unfavorable leasehold interest

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Area of a real estate property.

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Percentage of voting equity interest acquired in business combination.

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Discount rate used by lessee to determine present value of operating lease payments.

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Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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The number of units (items of property) under operating lease arrangements.

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Amount of sublease income excluding finance and operating lease expense.

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Note 5 - Leases (Details Textual)					1 Months Ended	3 Months Ended		6 Months Ended		7 Months Ended	13 Months Ended
Note 5 - Leases (Details Textual)	Jan. 01, 2025 USD ($)	Nov. 30, 2024 USD ($) ft²	May 07, 2024 USD ($) ft²	Nov. 03, 2021 USD ($) ft²	Feb. 28, 2025 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jul. 31, 2024 USD ($) m²	Jan. 31, 2024 USD ($) ft²	Mar. 31, 2025 ft² a	Dec. 31, 2024 USD ($)
Operating Lease, Liability						$ 3,727,000		$ 3,727,000
Operating Lease, Right-of-Use Asset						3,011,000		3,011,000					$ 1,015,000
Sublease Income						$ 15,000	$ 9,000	$ 30,000	$ 9,000
Lessee, Operating Lease, Discount Rate						8.00%		8.00%
Unfavorable Leasehold Interest						$ 658,000		$ 658,000
Minimum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)						9 years		9 years
Maximum [Member]
Lessee, Operating Lease, Remaining Lease Term (Year)						16 years		16 years
Related Party [Member]
Sublease Income						$ 15,000	$ 9,000	$ 30,000	$ 9,000
Condominium Space for Gamma Knife Facility in Guayaquil, Ecuador [Member]
Area of Real Estate Property (Square Foot) \| ft²												864
Land and Parking Spaces for Gamma Knife Facility in Guayaquil, Ecuador [Member]
Area of Real Estate Property (Square Foot) \| a												10,135
RI Companies [Member]
Business Acquisition, Percentage of Voting Interests Acquired			60.00%
Number of Single-unit Facilities			3
Property Subject to or Available for Operating Lease, Number of Units			2
Lease Agreement for New Corporate Office [Member]
Area of Real Estate Property (Square Foot) \| ft²				900
Operating Lease, Monthly Expense				$ 4,500
Small Office Sublease in San Francisco [Member]
Area of Real Estate Property (Square Foot) \| ft²		80
Operating Lease, Monthly Expense		$ 1,003
Operating Lease, Liability		15,000
Operating Lease, Right-of-Use Asset		$ 15,000
Small Office Sublease in Downers Grove [Member]
Operating Lease, Monthly Expense					$ 2,300
Operating Lease, Liability					26,000
Operating Lease, Right-of-Use Asset					$ 26,000
Clinic Space in Woonsocket, RI [Member] \| RI Companies [Member]
Area of Real Estate Property (Square Foot) \| ft²			1,950
Woonsocket Ground Lease [Member] \| RI Companies [Member]
Operating Lease, Annual Prepayment			$ 44,000
Facility in Warwick, RI [Member] \| RI Companies [Member]
Area of Real Estate Property (Square Foot) \| ft²			10,236
Operating Lease, Monthly Expense	$ 26,443		$ 32,790
Operating Lease, Liability	2,071,000
Operating Lease, Right-of-Use Asset	$ 2,071,000
Stand-alone Facility in Lima, Peru [Member]
Area of Real Estate Property (Square Foot) \| ft²											1,600
Operating Lease, Monthly Expense											$ 8,850
Radiation Therapy Facility in Puebla, Mexico [Member]
Area of Real Estate Property (Square Foot) \| m²										536
Operating Lease, Monthly Expense										$ 1,800
Operating Lease, Liability										149,000
Operating Lease, Right-of-Use Asset										$ 149,000