Annual report pursuant to Section 13 and 15(d)

Significant Accounting Policies - Schedule of Other Liabilities (Long-term) (Details)

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Significant Accounting Policies - Schedule of Other Liabilities (Long-term) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Note 1 - Significant Accounting Policies - Schedule of Other Liabilities (Long-term) (Details)    
Dispute related to royalty deductions $ 5,177 $ 5,467
Lease liability, non-current 11,227 11,360
Derivative liabilities, non-current 37,989 4,384
Black Elk escrow   11,103
Other 996 624
Total other liabilities (long-term) $ 55,389 $ 32,938