Earnings Per Share. (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted earnings per share

	Three Months Ended March 31, 2021
	Income Numerator			Shares Denominator		Per-Share Amount
Net income attributed to Alto Ingredients, Inc.	$	4,678
Less: Preferred stock dividends		(312	)
Basic income per share:
Income available to common stockholders	$	4,366			70,351	$	0.06
Add: Dilutive securities		—			2,113
Diluted income per share:
Income available to common stockholders	$	4,366			72,464	$	0.06

	Three Months Ended March 31, 2020
	Loss Numerator			Shares Denominator		Per-Share Amount
Net loss attributed to Alto Ingredients, Inc.	$	(25,100	)
Less: Preferred stock dividends		(315	)
Basic and diluted loss per share:
Net loss available to common stockholders	$	(25,415	)		53,828	$	(0.47	)