Note 1 - Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Property, Plant, and Equipment, Useful Life [Table Text Block]

	Years
Buildings and improvements		10 to 45
Machinery and equipment		3 to 25
Leasehold improvements		Life of Lease

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	For the Years Ended
	December 31,
	2021		2020		2019
Anti-Dilutive Restricted Stock Units		45,653		1,400,950		175,752
Anti-Dilutive Performance Share Units		—		110,470		20,202
		45,653		1,511,420		195,954

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	For the Years Ended
Dollars in thousands, except per share data	December 31,
	2021		2020			2019
Numerator:
Net Income (Loss)	$	34,110	$	(13,214	)	$	93,558
Less: Net (Loss) Income Attributable to Noncontrolling Interest		—		(3,459	)		17,557
Net Income (Loss) Attributable to CONSOL Energy Inc. Stockholders	$	34,110	$	(9,755	)	$	76,001
Denominator:
Weighted-average shares of common stock outstanding		34,404,360		26,066,971			26,938,339
Effect of dilutive shares *		984,198		—			132,769
Weighted-average diluted shares of common stock outstanding		35,388,558		26,066,971			27,071,108
Earnings (Loss) per Share:
Basic	$	0.99	$	(0.37	)	$	2.82
Dilutive	$	0.96	$	(0.37	)	$	2.81

 * During periods in which the Company incurs a net loss, diluted weighted average shares outstanding are equal to basic weighted average shares outstanding because the effect of all equity awards is anti-dilutive.

Schedule of Stock by Class [Table Text Block]

	2021		2020		2019
Balance, Beginning of Year		34,031,374		25,932,618		27,437,844
Issuance Related to CCR Merger (1)		—		7,967,690		—
Retirement Related to Stock Repurchase (2)		—		—		(1,717,497	)
Issuance Related to Stock-Based Compensation (3)		448,807		131,066		212,271
Balance, End of Year		34,480,181		34,031,374		25,932,618