CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CONSOLIDATED STATEMENTS OF OPERATIONS
Sales (including excise taxes of $368.4 million and $368.8 million, respectively)	$ 1,322,306,658	$ 1,274,984,408
Cost of sales	1,245,375,460	1,202,536,285
Gross profit	76,931,198	72,448,123
Selling, general and administrative expenses	66,781,234	64,173,895
Depreciation and amortization	2,318,146	2,049,475
Impairment charges	1,912,877
Total operating expenses	71,012,257	66,223,370
Operating income	5,918,941	6,224,753
Other expense (income):
Interest expense	1,194,373	825,690
Other (income), net	(54,042)	(39,513)
Total other expenses (income)	1,140,331	786,177
Income from operations before income tax expense	4,778,610	5,438,576
Income tax expense	1,164,000	2,489,000
Net income available to common shareholders	$ 3,614,610	$ 2,949,576
Basic earnings per share available to common shareholders (in dollars per share)	$ 5.47	$ 4.34
Diluted earnings per share available to common shareholders (in dollars per share)	$ 5.38	$ 4.26
Basic weighted average shares outstanding (in shares)	660,925	679,478
Diluted weighted average shares outstanding (in shares)	672,449	692,183
Dividends declared per common share	$ 1.00	$ 1.00
Dividends paid per common share	$ 1.00	$ 1.00