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 9 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share [Abstract]          
Net income attributable to Alico, Inc. common stockholders $ 9,100 $ 5,479   $ 12,332 $ 9,577
Weighted average number of common shares outstanding - basic (in shares) 8,228,000 8,293,000   8,243,000 8,315,000
Dilutive effect of equity-based awards (in shares) 96,000 71,000   71,000 25,000
Weighted average number of common shares outstanding - diluted (in shares) 8,324,000 8,364,000   8,314,000 8,340,000
Net income per common shares attributable to Alico, Inc. common stockholders:          
Basic (in dollars per share) $ 1.11 $ 0.66   $ 1.50 $ 1.15
Diluted (in dollars per share) $ 1.09 $ 0.66   $ 1.48 $ 1.15
Officer          
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]          
Antidilutive securities excluded from computation of earnings per share (in shares)     750,000