XML 50 R37.htm IDEA: XBRL DOCUMENT v3.23.2
Note 3 - Property, Plant and Equipment (Details Textual) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Capitalized Interest Costs, Including Allowance for Funds Used During Construction $ 1.0 $ 2.6 $ 2.8 $ 4.7