Note 4 - Segment Information - Segment Activity of Continuing Operations (Details) - USD ($) $ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2024 |
Mar. 31, 2024 |
Jun. 30, 2023 |
Mar. 31, 2023 |
Jun. 30, 2024 |
Jun. 30, 2023 |
Crude oil, natural gas and natural gas liquids sales |
$ 116,778
|
|
$ 109,240
|
|
$ 216,933
|
$ 189,643
|
Production expense |
52,446
|
|
38,604
|
|
84,535
|
66,804
|
Exploration expense |
0
|
|
57
|
|
48
|
65
|
Depreciation, depletion and amortization |
33,132
|
|
38,003
|
|
58,956
|
62,420
|
General and administrative expense |
7,591
|
|
5,395
|
|
14,301
|
10,619
|
Credit losses and other |
3,341
|
|
680
|
|
5,153
|
1,615
|
Total operating costs and expenses |
96,510
|
|
88,386
|
|
162,993
|
147,170
|
Other operating income (expense), net |
132
|
|
(303)
|
|
(34)
|
(303)
|
Operating income |
20,400
|
|
20,551
|
|
53,906
|
42,170
|
Derivative instruments loss, net |
257
|
|
31
|
|
(590)
|
52
|
Interest (expense) income, net |
(1,117)
|
|
(1,703)
|
|
(2,052)
|
(3,949)
|
Bargain purchase gain |
19,898
|
|
0
|
|
19,898
|
0
|
Other income (expense), net |
(1,984)
|
|
(539)
|
|
(3,784)
|
(1,692)
|
Total other expense, net |
17,054
|
|
(2,211)
|
|
13,472
|
(5,589)
|
Income (loss) before income taxes |
37,454
|
|
18,340
|
|
67,378
|
36,581
|
Income tax (benefit) expense |
9,303
|
|
11,588
|
|
31,541
|
26,359
|
Net income |
28,151
|
$ 7,686
|
6,752
|
$ 3,470
|
35,837
|
10,222
|
Consolidated capital expenditures |
22,431
|
|
16,427
|
|
46,453
|
41,852
|
FPSO demobilization and other costs |
0
|
|
5,647
|
|
0
|
5,647
|
Operating Segments [Member] | Gabon Segment [Member] |
|
|
|
|
|
|
Crude oil, natural gas and natural gas liquids sales |
53,674
|
|
77,924
|
|
111,178
|
114,661
|
Production expense |
18,486
|
|
23,931
|
|
35,199
|
38,346
|
Exploration expense |
0
|
|
43
|
|
0
|
51
|
Depreciation, depletion and amortization |
13,344
|
|
19,457
|
|
26,795
|
29,302
|
General and administrative expense |
319
|
|
318
|
|
953
|
936
|
Credit losses and other |
0
|
|
518
|
|
20
|
1,453
|
Total operating costs and expenses |
32,149
|
|
49,914
|
|
62,967
|
75,735
|
Other operating income (expense), net |
132
|
|
(62)
|
|
(34)
|
(62)
|
Operating income |
21,657
|
|
27,948
|
|
48,177
|
38,864
|
Derivative instruments loss, net |
|
|
0
|
|
0
|
0
|
Interest (expense) income, net |
(1,158)
|
|
(1,376)
|
|
(2,475)
|
(2,883)
|
Bargain purchase gain |
0
|
|
|
|
0
|
|
Other income (expense), net |
(137)
|
|
(619)
|
|
(231)
|
(102)
|
Total other expense, net |
(1,295)
|
|
(1,995)
|
|
(2,706)
|
(2,985)
|
Income (loss) before income taxes |
20,362
|
|
25,953
|
|
45,471
|
35,879
|
Income tax (benefit) expense |
9,731
|
|
16,251
|
|
26,024
|
22,829
|
Net income |
10,631
|
|
9,702
|
|
19,447
|
13,050
|
Consolidated capital expenditures |
5,102
|
|
1,375
|
|
11,389
|
5,064
|
FPSO demobilization and other costs |
|
|
5,647
|
|
|
5,647
|
Operating Segments [Member] | Egypt [Member] |
|
|
|
|
|
|
Crude oil, natural gas and natural gas liquids sales |
35,481
|
|
21,308
|
|
72,442
|
56,092
|
Production expense |
13,424
|
|
11,089
|
|
26,175
|
22,199
|
Exploration expense |
0
|
|
14
|
|
48
|
14
|
Depreciation, depletion and amortization |
8,416
|
|
13,757
|
|
16,752
|
24,552
|
General and administrative expense |
207
|
|
202
|
|
376
|
381
|
Credit losses and other |
3,178
|
|
0
|
|
4,812
|
0
|
Total operating costs and expenses |
25,225
|
|
25,062
|
|
48,163
|
47,146
|
Other operating income (expense), net |
0
|
|
(241)
|
|
0
|
(241)
|
Operating income |
10,256
|
|
(3,995)
|
|
24,279
|
8,705
|
Derivative instruments loss, net |
|
|
0
|
|
0
|
0
|
Interest (expense) income, net |
(350)
|
|
(503)
|
|
(760)
|
(1,311)
|
Bargain purchase gain |
0
|
|
|
|
0
|
|
Other income (expense), net |
0
|
|
0
|
|
0
|
0
|
Total other expense, net |
(350)
|
|
(503)
|
|
(760)
|
(1,311)
|
Income (loss) before income taxes |
9,906
|
|
(4,498)
|
|
23,519
|
7,394
|
Income tax (benefit) expense |
8,749
|
|
4,261
|
|
15,782
|
9,253
|
Net income |
1,157
|
|
(8,759)
|
|
7,737
|
(1,859)
|
Consolidated capital expenditures |
1,868
|
|
8,526
|
|
6,196
|
20,097
|
FPSO demobilization and other costs |
|
|
0
|
|
|
0
|
Operating Segments [Member] | Canada [Member] |
|
|
|
|
|
|
Crude oil, natural gas and natural gas liquids sales |
10,383
|
|
10,008
|
|
16,073
|
18,890
|
Production expense |
3,359
|
|
3,255
|
|
5,738
|
5,509
|
Exploration expense |
0
|
|
0
|
|
0
|
0
|
Depreciation, depletion and amortization |
5,294
|
|
4,747
|
|
9,191
|
8,458
|
General and administrative expense |
(127)
|
|
0
|
|
(115)
|
0
|
Credit losses and other |
0
|
|
0
|
|
0
|
0
|
Total operating costs and expenses |
8,526
|
|
8,002
|
|
14,814
|
13,967
|
Other operating income (expense), net |
0
|
|
0
|
|
0
|
0
|
Operating income |
1,857
|
|
2,006
|
|
1,259
|
4,923
|
Derivative instruments loss, net |
|
|
0
|
|
0
|
0
|
Interest (expense) income, net |
14
|
|
0
|
|
38
|
(4)
|
Bargain purchase gain |
0
|
|
|
|
0
|
|
Other income (expense), net |
5
|
|
0
|
|
5
|
1
|
Total other expense, net |
19
|
|
0
|
|
43
|
(3)
|
Income (loss) before income taxes |
1,876
|
|
2,006
|
|
1,302
|
4,920
|
Income tax (benefit) expense |
0
|
|
0
|
|
0
|
0
|
Net income |
1,876
|
|
2,006
|
|
1,302
|
4,920
|
Consolidated capital expenditures |
7,155
|
|
6,491
|
|
19,714
|
16,656
|
FPSO demobilization and other costs |
|
|
0
|
|
|
0
|
Operating Segments [Member] | Equatorial Guinea Segment [Member] |
|
|
|
|
|
|
Crude oil, natural gas and natural gas liquids sales |
0
|
|
0
|
|
0
|
0
|
Production expense |
272
|
|
386
|
|
517
|
748
|
Exploration expense |
0
|
|
0
|
|
0
|
0
|
Depreciation, depletion and amortization |
0
|
|
0
|
|
0
|
0
|
General and administrative expense |
93
|
|
87
|
|
171
|
216
|
Credit losses and other |
163
|
|
162
|
|
321
|
162
|
Total operating costs and expenses |
528
|
|
635
|
|
1,009
|
1,126
|
Other operating income (expense), net |
0
|
|
0
|
|
0
|
0
|
Operating income |
(528)
|
|
(635)
|
|
(1,009)
|
(1,126)
|
Derivative instruments loss, net |
|
|
0
|
|
0
|
0
|
Interest (expense) income, net |
0
|
|
0
|
|
0
|
0
|
Bargain purchase gain |
0
|
|
|
|
0
|
|
Other income (expense), net |
3
|
|
1
|
|
2
|
(1)
|
Total other expense, net |
3
|
|
1
|
|
2
|
(1)
|
Income (loss) before income taxes |
(525)
|
|
(634)
|
|
(1,007)
|
(1,127)
|
Income tax (benefit) expense |
0
|
|
0
|
|
0
|
0
|
Net income |
(525)
|
|
(634)
|
|
(1,007)
|
(1,127)
|
Consolidated capital expenditures |
0
|
|
0
|
|
0
|
0
|
FPSO demobilization and other costs |
|
|
0
|
|
|
0
|
Operating Segments [Member] | Cote d'Ivoire 1 [Member] |
|
|
|
|
|
|
Crude oil, natural gas and natural gas liquids sales |
17,240
|
|
0
|
|
17,240
|
0
|
Production expense |
16,905
|
|
0
|
|
16,905
|
0
|
Exploration expense |
0
|
|
0
|
|
0
|
0
|
Depreciation, depletion and amortization |
6,049
|
|
0
|
|
6,049
|
0
|
General and administrative expense |
124
|
|
0
|
|
124
|
0
|
Credit losses and other |
0
|
|
0
|
|
0
|
0
|
Total operating costs and expenses |
23,078
|
|
0
|
|
23,078
|
0
|
Other operating income (expense), net |
0
|
|
0
|
|
0
|
0
|
Operating income |
(5,838)
|
|
0
|
|
(5,838)
|
0
|
Derivative instruments loss, net |
0
|
|
0
|
|
0
|
0
|
Interest (expense) income, net |
(1,540)
|
|
0
|
|
(1,540)
|
0
|
Bargain purchase gain |
0
|
|
|
|
0
|
|
Other income (expense), net |
(301)
|
|
0
|
|
(301)
|
0
|
Total other expense, net |
(1,841)
|
|
0
|
|
(1,841)
|
0
|
Income (loss) before income taxes |
(7,679)
|
|
0
|
|
(7,679)
|
0
|
Income tax (benefit) expense |
(3,050)
|
|
0
|
|
(3,050)
|
0
|
Net income |
(4,630)
|
|
0
|
|
(4,630)
|
0
|
Consolidated capital expenditures |
7,152
|
|
0
|
|
7,152
|
0
|
FPSO demobilization and other costs |
|
|
0
|
|
|
0
|
Corporate and Reconciling Items [Member] |
|
|
|
|
|
|
Crude oil, natural gas and natural gas liquids sales |
0
|
|
0
|
|
0
|
0
|
Production expense |
0
|
|
(57)
|
|
1
|
2
|
Exploration expense |
0
|
|
0
|
|
0
|
0
|
Depreciation, depletion and amortization |
29
|
|
42
|
|
169
|
108
|
General and administrative expense |
6,975
|
|
4,788
|
|
12,792
|
9,086
|
Credit losses and other |
0
|
|
0
|
|
0
|
0
|
Total operating costs and expenses |
7,004
|
|
4,773
|
|
12,962
|
9,196
|
Other operating income (expense), net |
0
|
|
0
|
|
0
|
0
|
Operating income |
(7,004)
|
|
(4,773)
|
|
(12,962)
|
(9,196)
|
Derivative instruments loss, net |
257
|
|
31
|
|
(590)
|
52
|
Interest (expense) income, net |
1,917
|
|
176
|
|
2,685
|
249
|
Bargain purchase gain |
19,898
|
|
|
|
19,898
|
|
Other income (expense), net |
(1,554)
|
|
79
|
|
(3,259)
|
(1,590)
|
Total other expense, net |
20,519
|
|
286
|
|
18,735
|
(1,289)
|
Income (loss) before income taxes |
13,515
|
|
(4,487)
|
|
5,773
|
(10,485)
|
Income tax (benefit) expense |
(6,127)
|
|
(8,924)
|
|
(7,215)
|
(5,723)
|
Net income |
19,642
|
|
4,437
|
|
12,988
|
(4,762)
|
Consolidated capital expenditures |
$ 1,153
|
|
36
|
|
$ 2,001
|
36
|
FPSO demobilization and other costs |
|
|
$ 0
|
|
|
$ 0
|