Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Lease Receivable (Details Textual)

v3.23.2
Note 4 - Lease Receivable (Details Textual)
 6 Months Ended
Apr. 26, 2023
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2022
USD ($)
Mar. 31, 2023
USD ($)
Feb. 15, 2021
USD ($)
ft²
Proceeds from Sale of Property, Plant, and Equipment   $ 67,000 $ 1,145,000    
Sales-Type Lease, Net Investment in Lease, Excluding Accrued Interest, after Allowance for Credit Loss, Total       $ 17,000,000.0  
Sales-Type Lease, Net Investment in Lease, Excluding Accrued Interest, after Allowance for Credit Loss, Implied Interest Rate       0.50%  
Proceeds from Sales-type Lease Payments, Financing Activities   12,278,000 $ 410,000    
Sales-type Lease, Lease Income   $ 24,000      
Recycling Facility at TRIC [Member]          
Area of Real Estate Property (Square Foot) | ft²         136,750
Lessor, Operating Lease, Lessee's First Option to Purchase         $ 14,250,000
Lessor, Operating Lease, Lessee's Second Option to Purchase         15,250,000
First Nonrefundable Deposit Subject to Purchase Option         1,250,000
Second Nonrefundable Deposit Subject to Purchase Option         2,000,000.0
Lessor, Operating Lease, Monthly Payments to be Received         68,000
Lessor, Operating Lease, Monthly Payments to be Received in Last Six Months of Lease Term         $ 100,640
Recycling Facility at TRIC [Member] | Comstock [Member]          
Proceeds from Sale of Property, Plant, and Equipment $ 12,000,000        
Proceeds from Sale of Property Plant and Equipment, Net of Note Payable $ 5,700,000