Annual report pursuant to Section 13 and 15(d)

Accounts Payable and Accrued Liabilities (Details)

v3.3.1.900
Accounts Payable and Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Accounts Payable and Accrued Liabilities [Abstract]    
Accounts payable $ 1,402 $ 1,503
Severance and ad valorem tax payable 1,992 1,947
Payroll and other taxes 1,173 1,082
Accounts payable and accrued liabilities $ 4,567 $ 4,532