Accrued Liabilities (Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Accrued Liabilities [Abstract]
Employee costs	$ 9,058	$ 10,005
Lease operating expenses	3,490	3,451
Capital expenditures	4,102	3,962
Taxes	2,192	3,320
Interest payable	37	296
Other	1,209	1,416
Total accrued liabilities	$ 20,088	$ 22,450