CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CONSOLIDATED STATEMENTS OF OPERATIONS
Sales (including excise taxes of $393.3 million and $370.2 million, respectively)	$ 1,521,278,763	$ 1,392,388,157
Cost of sales	1,433,544,831	1,308,364,726
Gross profit	87,733,932	84,023,431
Selling, general and administrative expenses	75,051,227	72,182,883
Depreciation and amortization	3,116,449	2,617,591
Impairment charges	485,270	2,873,269
Total operating expenses	78,652,946	77,673,743
Operating income	9,080,986	6,349,688
Other expense (income):
Interest expense	1,693,251	1,598,864
Other (income), net	(114,276)	(61,119)
Total other expenses (income)	1,578,975	1,537,745
Income from operations before income taxes	7,502,011	4,811,943
Income tax expense	2,143,000	1,609,000
Net income (loss) attributable to AMCON, net of tax (1)	183,579
Net income available to common shareholders	$ 5,542,590	$ 3,202,943
Basic earnings per share available to common shareholders (in dollars per share)	$ 9.88	$ 5.36
Diluted earnings per share available to common shareholders (in dollars per share)	$ 9.76	$ 5.25
Basic weighted average shares outstanding (in shares)	561,166	597,961
Diluted weighted average shares outstanding (in shares)	567,961	609,836
Dividends declared and paid per common share (in dollars per share)	$ 1.00	$ 1.00