XML 53 R42.htm IDEA: XBRL DOCUMENT v3.24.3
Note 6 - Renewable Energy Tax Credit Investment (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Amortization of Solar Energy Tax Credit Investment $ 335,000 $ 997,000 $ 1,200,000 $ 997,000  
Income Tax Credits and Adjustments 443,000 $ 1,100,000 1,500,000 $ 1,100,000  
Financial Standby Letter of Credit [Member]          
Guarantor Obligations, Maximum Exposure, Undiscounted 1,900,000   1,900,000    
Investment Tax Credit Carryforward [Member]          
Tax Credit, Committed Investment in the Tax Credit Producing Entity $ 1,100,000   $ 1,100,000   $ 306,000