Note 7 - Share-based Awards and Cash-based Awards (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]

	Restricted Stock Units
				Weighted Average
				Grant Date Fair
	Units			Value Per Unit
Nonvested, December 31, 2020		763,688		$	4.51
Forfeited		(19,880	)		4.51
Nonvested, March 31, 2021		743,808			4.51

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]

	Three Months Ended March 31,
	2021		2020
Share-based compensation expense from:
Restricted stock units	$	338	$	978
Restricted Shares		116		70
Total	$	454	$	1,048

Schedule of Incentive Compensation Expense [Table Text Block]

	Three Months Ended March 31,
	2021		2020
Share-based compensation included in:
General and administrative expenses	$	454	$	1,048
Cash-based incentive compensation included in:
Lease operating expense (1)		839		849
General and administrative expenses (1)		2,682		3,631
Total charged to operating income	$	3,975	$	5,528