Annual report pursuant to Section 13 and 15(d)

Accounts Payable and Accrued Liabilities (Details)

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Accounts Payable and Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Accounts Payable and Accrued Liabilities [Abstract]    
Accounts payable $ 523 $ 620
Payroll and other taxes 1,483 1,218
Severance and ad valorem tax payable 205 505
Accounts payable and accrued liabilities $ 2,211 $ 2,343