VAALCO Energy, Inc. Quarterly report pursuant to Section 13 or 15(d)

Organization and Accounting Policies (Rollforward of Aggregate Allowance for Bad Debt) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Organization and Accounting Policies [Abstract]
Balance at beginning of period	$ (1,904)	$ (1,876)	$ (1,508)	$ (2,535)
Bad debt charge	(151)	(54)	(1,140)	(30)
Adjustment associated with reversal of allowance on Mutamba			593
Adjustment associated with settlement of customs audit				623
Foreign currency gain		53		65
Balance at end of period	$ (2,055)	$ (1,877)	$ (2,055)	$ (1,877)