Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Lease Receivable (Details Textual)

v3.23.1
Note 4 - Lease Receivable (Details Textual)
 3 Months Ended
Apr. 26, 2023
USD ($)
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Feb. 15, 2021
USD ($)
ft²
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   $ 283,000 $ 185,000  
Sales-type Lease, Lease Income   $ 18,000    
Subsequent Event [Member] | Comstock [Member]        
Proceeds from Sale of Property Plant and Equipment, Net of Note Payable $ 5,700,000      
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