v3.25.2
Note 3 - Net Investment in Sales Type Lease (Details Textual) - USD ($)
1 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2025
Jan. 31, 2021
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2022
Dec. 31, 2024
Sales-Type Lease, Net Investment in Lease, after Allowance for Credit Loss, Current     $ 67,475     $ 75,858
Sales-Type Lease, Net Investment in Lease, after Allowance for Credit Loss, Noncurrent     70,892     $ 46,924
January 2021 [Member]            
Lessor, Sales-type Lease, Term of Contract (Year)   5 years        
Lessor, Sales-type Lease, Implied Interest Rate   6.00%        
Sales-Type Lease, Net Investment in Lease, after Allowance for Credit Loss   $ 210,782        
Inventory Derecognized for Sales-type Leases   $ 139,521        
Sales-type Lease, Lease Income     28,869 $ 18,167    
Sales-type Lease, Interest Income     1,656 2,208    
December 2022 [Member]            
Lessor, Sales-type Lease, Term of Contract (Year)         5 years  
Lessor, Sales-type Lease, Implied Interest Rate         6.00%  
Sales-Type Lease, Net Investment in Lease, after Allowance for Credit Loss         $ 98,279  
Inventory Derecognized for Sales-type Leases         $ 46,533  
Sales-type Lease, Lease Income     11,226 9,041    
Sales-type Lease, Interest Income     2,074 2,359    
March 2025 [Member]            
Lessor, Sales-type Lease, Term of Contract (Year) 4 years          
Lessor, Sales-type Lease, Implied Interest Rate 6.00%          
Sales-Type Lease, Net Investment in Lease, after Allowance for Credit Loss $ 53,680          
Inventory Derecognized for Sales-type Leases $ 31,740          
Sales-type Lease, Lease Income     $ 21,940      
Sales-type Lease, Interest Income       $ 0