Note 12 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of income tax expense

	Year Ended December 31,
(In thousands)	2019		2018		2017
Current taxes:
Federal	$	—	$	—	$	—
State		7		4		—
Current taxes		7		4		—
Deferred taxes:
Federal		3,228		(111)		—
State		1,928		220		—
Deferred taxes		5,156		109		—
Provision for income taxes, net	$	5,163	$	113	$	—

Schedule of accounting for differences between income taxes computed at the federal statutory rate and the provision recorded for income taxes

	Year Ended December 31,
(In thousands)	2019		2018		2017
Income taxes computed at the federal statutory rate	$	6,320	$	5,289	$	(5,242)
Effect of:
(Income) loss taxed as partnership		—		—		(552)
State taxes, net of federal benefits		945		970		(610)
Percentage depletion		(2,093)		(1,033)		—
Changes in tax status		—		—		(205)
Change in valuation allowance		—		(4,464)		4,464
Change in enacted tax rates		—		—		2,119
Other, net		(9)		(649)		26
Total	$	5,163	$	113	$	—

Schedule of deferred tax assets and liabilities

	December 31,
(In thousands)	2019		2018
Deferred tax assets:
Loss carryforwards U.S. - Federal/States	$	19,512	$	17,073
Asset retirement obligations		3,523		3,306
Accrued expenses		725		521
Stock-based compensation		2,094		1,393
Other		—		4
Total deferred tax assets		25,854		22,297
Less valuation allowance		—		—
Deferred tax assets, net		25,854		22,297
Deferred tax liabilities:
Depreciation & amortization		(31,119)		(22,406)
Net deferred tax liabilities	$	(5,265)	$	(109)