Note 1 - Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

	Number of Shares			Weighted Average Option Exercise Price Per Share		Weighted Average Grant Date Fair Value Per Share
Outstanding, December 31, 2021		55		$	53.79	$	36.95
Cancelled/Forfeited		(44	)	$	55.79	$	38.05
Expired		(4	)	$	40.43	$	29.23
Balance, September 30, 2022		7		$	-	$	-

Nonvested Restricted Stock Shares Activity [Table Text Block]

	Number of Shares (thousands)			Weighted Average Grant Date Fair Value Per Share
Unvested, December 31, 2021		14		$	27.97
Granted		1,650		$	1.88
Vested/Released		(1,664	)		27.97
Unvested, September 30, 2022	$	-		$	-

Schedule of Nonvested Performance-Based Units Activity [Table Text Block]

	Number of Shares (thousands)			Weighted Average Grant Date Fair Value Per Share
Unvested, December 31, 2021		28		$	26.80
Expired		(28	)	$	26.80
Unvested, September 30, 2022		-		$	-

Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2022		2021		2022		2021
Options	$	-	$	1	$	-	$	(22	)
Restricted stock		2,971		211		3,217		527
Performance shares		-		61		79		275
	$	2,971	$	273	$	3,296	$	780

Schedule of Management Incentive Plan [Text Block]

Eligible Employee	Allocation of MIP Value %
Robert Watson		45.00	%
Kenny Johnson		9.50	%

Tier	Change of Control Value Range	MIP Pool Enhancement			Accreted Amount
I	$0-100 million		0	%
II	$100-110 million		50	%	$	5,000,000
III	$110-140 million		5	%	$	1,500,000
IV	$140-180 million		10	%	$	4,000,000
V	$180+ million		15	%	up to $1,500,000

Schedule of Change in Asset Retirement Obligation [Table Text Block]

	September 30, 2022			December 31, 2021
Beginning future site restoration obligation	$	4,708		$	7,360
New wells placed on production and other		-			1
Deletions related to property sales		(1,839	)		(2,845	)
Deletions related to plugging costs		-			(342	)
Accretion expense		128			330
Revisions and other		(2	)		204
Ending future site restoration obligation	$	2,995		$	4,708