v3.26.1
Note 5 - Leases (Details Textual)
1 Months Ended 3 Months Ended 6 Months Ended 7 Months Ended 13 Months Ended
Jan. 01, 2025
USD ($)
Nov. 30, 2024
USD ($)
ft²
May 07, 2024
USD ($)
ft²
Feb. 28, 2025
USD ($)
May 31, 2024
USD ($)
a
Jun. 30, 2026
USD ($)
ft²
a
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
ft²
a
Jun. 30, 2025
USD ($)
Jul. 31, 2024
USD ($)
Jan. 31, 2024
USD ($)
ft²
Mar. 13, 2026
Dec. 31, 2025
USD ($)
Operating Lease, Right-of-Use Asset           $ 3,571,000   $ 3,571,000         $ 3,648,000
Number of Single-unit Facilities     3     2   2          
Operating Lease, Liability           $ 4,307,000   $ 4,307,000          
Sublease Income           $ 32,000 $ 15,000 $ 47,000 $ 30,000        
Lessee, Operating Lease, Discount Rate           8.00%   8.00%          
Minimum [Member]                          
Lessee, Operating Lease, Remaining Lease Term (Year)           8 years   8 years          
Maximum [Member]                          
Lessee, Operating Lease, Remaining Lease Term (Year)           15 years   15 years          
Related Party [Member]                          
Sublease Income           $ 32,000 $ 15,000 $ 47,000 $ 30,000        
Condominium Space for Gamma Knife Facility in Guayaquil, Ecuador [Member]                          
Area of Real Estate Property (Square Foot) | ft²           864   864          
Land and Parking Spaces for Gamma Knife Facility in Guayaquil, Ecuador [Member]                          
Area of Real Estate Property (Square Foot) | a           10,135   10,135          
RI Companies [Member]                          
Number of Single-unit Facilities     3                    
Property Subject to or Available for Operating Lease, Number of Units     2                    
Radiation Therapy Facility in Puebla, Mexico [Member]                          
Lessee, Operating Lease, Remaining Lease Term (Year)                       7 years  
Area of Real Estate Property (Square Foot) | m²                   536      
Operating Lease, Monthly Expense                   $ 1,800      
Operating Lease, Liability                   $ 149,000      
Small Office Sublease in San Francisco [Member]                          
Area of Real Estate Property (Square Foot) | ft²   80                      
Operating Lease, Monthly Expense   $ 1,003                      
Small Office Sublease in Downers Grove [Member]                          
Operating Lease, Monthly Expense       $ 2,300                  
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                    
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, Right-of-Use Asset $ 1,922,000                        
Stand-alone Facility in Lima, Peru [Member]                          
Area of Real Estate Property (Square Foot)         7,704           1,600    
Operating Lease, Monthly Expense         $ 9,000           $ 8,850    
Operating Lease, Right-of-Use Asset           $ 771,000   $ 771,000          
Operating Lease, Liability           $ 771,000   $ 771,000