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Derivative Instruments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Gain (loss) on derivative instruments $ (38) $ (92)
Vendetta Warrants [Member]    
Gain (loss) on derivative instruments (46) 29
Kinross Calls [Member]    
Gain (loss) on derivative instruments $ 8 $ (121)