Note 10 - Share-based Awards and Cash-based Awards (Tables)
|
12 Months Ended |
Dec. 31, 2020 |
|---|
| Notes Tables |
|
| Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block] |
| |
|
2020 |
|
|
2019 |
|
|
2018 |
|
| |
|
Restricted Stock Units |
|
|
Weighted Average Grant Date Fair Value Per Share |
|
|
Restricted Stock Units |
|
|
Weighted Average Grant Date Fair Value Per Share |
|
|
Restricted Stock Units |
|
|
Weighted Average Grant Date Fair Value Per Share |
|
| Nonvested, beginning of period |
|
|
1,614,722 |
|
|
$ |
5.73 |
|
|
|
3,355,917 |
|
|
$ |
3.90 |
|
|
|
5,765,251 |
|
|
$ |
2.48 |
|
| Granted |
|
|
- |
|
|
|
- |
|
|
|
994,698 |
|
|
|
4.51 |
|
|
|
988,955 |
|
|
|
6.90 |
|
| Vested |
|
|
(787,203 |
) |
|
|
6.90 |
|
|
|
(1,475,373 |
) |
|
|
2.76 |
|
|
|
(2,261,665 |
) |
|
|
2.21 |
|
| Forfeited |
|
|
(63,831 |
) |
|
|
5.80 |
|
|
|
(1,260,520 |
) |
|
|
3.37 |
|
|
|
(1,136,624 |
) |
|
|
2.68 |
|
| Nonvested, end of period |
|
|
763,688 |
|
|
$ |
4.51 |
|
|
|
1,614,722 |
|
|
$ |
5.73 |
|
|
|
3,355,917 |
|
|
$ |
3.90 |
|
|
| Share-based Payment Arrangement, Nonemployee Director Award Plan, Activity [Table Text Block] |
| |
|
2020 |
|
|
2019 |
|
|
2018 |
|
| |
|
Restricted Shares |
|
|
Weighted Average Grant Date Fair Value Per Share |
|
|
Restricted Shares |
|
|
Weighted Average Grant Date Fair Value Per Share |
|
|
Restricted Shares |
|
|
Weighted Average Grant Date Fair Value Per Share |
|
| Nonvested, beginning of period |
|
|
123,180 |
|
|
$ |
4.55 |
|
|
|
181,832 |
|
|
$ |
3.08 |
|
|
|
246,528 |
|
|
$ |
2.27 |
|
| Granted |
|
|
109,376 |
|
|
|
2.56 |
|
|
|
46,360 |
|
|
|
6.04 |
|
|
|
41,544 |
|
|
|
6.74 |
|
| Vested |
|
|
(78,428 |
) |
|
|
2.38 |
|
|
|
(105,012 |
) |
|
|
2.67 |
|
|
|
(106,240 |
) |
|
|
2.64 |
|
| Nonvested, end of period |
|
|
154,128 |
|
|
$ |
4.24 |
|
|
|
123,180 |
|
|
$ |
4.55 |
|
|
|
181,832 |
|
|
$ |
3.08 |
|
|
| Schedule of Nonvested Restricted Stock, Vesting Schedule [Table Text Block] |
| |
|
Restricted Shares |
|
| 2021 |
|
|
138,676 |
|
| 2022 |
|
|
15,452 |
|
| Total |
|
|
154,128 |
|
|
| Share-based Payment Arrangement, Cost by Plan [Table Text Block] |
| |
|
Year Ended December 31, |
|
| |
|
2020 |
|
|
2019 |
|
|
2018 |
|
| Share-based compensation expense from: |
|
|
|
|
|
|
|
|
|
|
|
|
| Restricted stock units |
|
$ |
3,555 |
|
|
$ |
3,410 |
|
|
$ |
3,260 |
|
| Restricted stock |
|
|
404 |
|
|
|
280 |
|
|
|
280 |
|
| Total |
|
$ |
3,959 |
|
|
$ |
3,690 |
|
|
$ |
3,540 |
|
|
| Schedule of Incentive Compensation Expense [Table Text Block] |
| |
|
Year Ended December 31, |
|
| |
|
2020 |
|
|
2019 |
|
|
2018 |
|
| Share-based compensation included in: |
|
|
|
|
|
|
|
|
|
|
|
|
| General and administrative |
|
$ |
3,959 |
|
|
$ |
3,690 |
|
|
$ |
3,540 |
|
| Cash-based incentive compensation included in: |
|
|
|
|
|
|
|
|
|
|
|
|
| Lease operating expense |
|
|
849 |
|
|
|
2,206 |
|
|
|
3,596 |
|
| General and administrative |
|
|
4,019 |
|
|
|
8,897 |
|
|
|
9,586 |
|
| Total charged to operating income |
|
$ |
8,827 |
|
|
$ |
14,793 |
|
|
$ |
16,722 |
|
|