Earnings Per Share. (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted earnings per share

	Three Months Ended September 30, 2021
	Loss Numerator			Shares Denominator		Per-Share Amount
Net loss attributed to Alto Ingredients, Inc.	$	(3,132	)
Less: Preferred stock dividends		(319	)
Basic and Diluted loss per share:
Loss available to common stockholders	$	(3,451	)		71,383	$	(0.05	)

	Three Months Ended September 30, 2020
	Income Numerator			Shares Denominator		Per-Share Amount
Net income attributed to Alto Ingredients, Inc.	$	15,215
Less: Preferred stock dividends		(319	)
Basic income per share:
Income available to common stockholders	$	14,896			58,503	$	0.25
Add: Dilutive securities		—			3,196
Diluted income per share:
Income available to common stockholders	$	14,896			61,699	$	0.24

	Nine Months Ended September 30, 2021
	Income Numerator			Shares Denominator		Per-Share Amount
Net income attributed to Alto Ingredients, Inc.	$	9,936
Less: Preferred stock dividends		(946	)
Basic income per share:
Income available to common stockholders	$	8,990			71,002	$	0.13
Add: Dilutive securities		—			1,258
Diluted income per share:
Income available to common stockholders	$	8,990			72,260	$	0.12

	Nine Months Ended September 30, 2020
	Income Numerator			Shares Denominator		Per-Share Amount
Net income attributed to Alto Ingredients, Inc.	$	5,079
Less: Preferred stock dividends		(949	)
Basic income per share:
Income available to common stockholders	$	4,130			55,620	$	0.07
Add: Dilutive securities		—			2,338
Diluted income per share:
Income available to common stockholders	$	4,130			57,958	$	0.07