Prepaids and Deposits - Components of Prepaids and Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Prepaids:
Insurance	$ 1,631	$ 1,221
Mining claims	400	400
Permitting fees	95	95
Surety bond fees	643	446
License fees	280	287
Other	73	154
Deposits	204	238
Total current prepaids and deposits	3,326	2,840
Non-current prepaids:
Insurance	947	0
Royalty – advance payment on Crofoot Royalty	600	600
Total non-current prepaids	$ 1,547	$ 600