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Activity in the asset retirement obligation account for the years ended December 31, is as follows: (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Accounting Policies [Abstract]    
Balance, beginning $ 222 $ 214
Accretion of liability due to passage of time 8 8
Amortization of asset due to passage of time
Balance, ending $ 230 $ 222