Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Common Share (Details)

v3.10.0.1
Earnings Per Common Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Earnings Per Share [Abstract]    
Net (loss) income attributable to Alico, Inc. common stockholders $ (2,467) $ 8,746
Weighted average number of common shares outstanding - basic (in shares) 7,479,000 8,245,000
Dilutive effect of equity-based awards (in shares) 0 119,000
Weighted average number of common shares outstanding - diluted (in shares) 7,479,000 8,364,000
Net (loss) income per common shares attributable to Alico, Inc. common stockholders:    
Basic (in dollars per share) $ (0.33) $ 1.06
Diluted (in dollars per share) $ (0.33) $ 1.05
Officer | 2016 Option Grants    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive securities excluded from computation of earnings per share (in shares) 685,000 0
Forfeited in period (in shares) 375,000