Condensed Consolidated Unaudited Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Condensed Consolidated Unaudited Statements of Operations
Sales (including excise taxes of $82.9 million and $83.1 million, and $175.9 million and $171.7 million, respectively)	$ 310,715,873	$ 295,207,286	$ 655,449,793	$ 610,720,495
Cost of sales	290,126,453	278,141,110	614,228,235	575,462,557
Gross profit	20,589,420	17,066,176	41,221,558	35,257,938
Selling, general and administrative expenses	17,391,681	15,619,420	35,348,896	31,973,028
Depreciation and amortization	641,228	537,903	1,249,236	1,068,908
Total operating expenses	18,032,909	16,157,323	36,598,132	33,041,936
Operating income	2,556,511	908,853	4,623,426	2,216,002
Other expense (income):
Interest expense	396,576	313,364	719,526	515,555
Other (income), net	(36,280)	(27,410)	(39,636)	(32,543)
Total other expenses (income)	360,296	285,954	679,890	483,012
Income from operations before income taxes	2,196,215	622,899	3,943,536	1,732,990
Income tax expense (benefit)	673,000	284,000	1,175,000	(86,000)
Net income available to common shareholders	$ 1,523,215	$ 338,899	$ 2,768,536	$ 1,818,990
Basic earnings per share available to common shareholders (in dollars per share)	$ 2.49	$ 0.49	$ 4.50	$ 2.64
Diluted earnings per share available to common shareholders (in dollars per share)	$ 2.45	$ 0.49	$ 4.44	$ 2.61
Basic weighted average shares outstanding (in shares)	611,824	689,480	614,874	688,570
Diluted weighted average shares outstanding (in shares)	620,769	697,406	623,848	697,563
Dividends declared per common share	$ 0.46	$ 0.46	$ 0.64	$ 0.64
Dividends paid per common share	$ 0.46	$ 0.46	$ 0.64	$ 0.64