CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS
Sales (including excise taxes of $370.2 million and $368.4 million, respectively)	$ 1,392,388,157	$ 1,322,306,658
Cost of sales	1,308,364,726	1,245,375,460
Gross profit	84,023,431	76,931,198
Selling, general and administrative expenses	72,182,883	66,781,234
Depreciation and amortization	2,617,591	2,318,146
Impairment charges	2,873,269	1,912,877
Total operating expenses	77,673,743	71,012,257
Operating income	6,349,688	5,918,941
Other expense (income):
Interest expense	1,598,864	1,194,373
Other (income), net	(61,119)	(54,042)
Total other expenses (income)	1,537,745	1,140,331
Income from operations before income taxes	4,811,943	4,778,610
Income tax expense	1,609,000	1,164,000
Net income available to common shareholders	$ 3,202,943	$ 3,614,610
Basic earnings per share available to common shareholders (in dollars per share)	$ 5.36	$ 5.47
Diluted earnings per share available to common shareholders (in dollars per share)	$ 5.25	$ 5.38
Basic weighted average shares outstanding (in shares)	597,961	660,925
Diluted weighted average shares outstanding (in shares)	609,836	672,449
Dividends declared per common share	$ 1.00	$ 1.00