Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Condensed Consolidated Statements of Operations
Sales (including excise taxes of $88.7 million and $87.4 million, and $186.0 million and $184.4 million, respectively)	$ 296,449,126	$ 287,443,864	$ 618,457,375	$ 602,877,340
Cost of sales	278,908,888	269,710,529	581,955,233	565,617,473
Gross profit	17,540,238	17,733,335	36,502,142	37,259,867
Selling, general and administrative expenses	14,770,358	15,485,757	30,615,492	31,666,879
Depreciation and amortization	575,681	590,857	1,142,630	1,167,162
Total operating expenses	15,346,039	16,076,614	31,758,122	32,834,041
Operating income	2,194,199	1,656,721	4,744,020	4,425,826
Other expense (income):
Interest expense	161,402	194,375	373,856	431,517
Other (income), net	(35,827)	(35,987)	(63,082)	(43,054)
Total other expenses (income)	125,575	158,388	310,774	388,463
Income from operations before income tax expense	2,068,624	1,498,333	4,433,246	4,037,363
Income tax expense	922,000	729,000	1,931,000	1,722,000
Net income	1,146,624	769,333	2,502,246	2,315,363
Preferred stock dividend requirements	(48,643)	(48,108)	(97,820)	(97,285)
Net income available to common shareholders	$ 1,097,981	$ 721,225	$ 2,404,426	$ 2,218,078
Basic earnings per share available to common shareholders: (in dollars per share)	$ 1.81	$ 1.17	$ 3.90	$ 3.61
Diluted earnings per share available to common shareholders: (in dollars per share)	$ 1.61	$ 1.04	$ 3.46	$ 3.15
Basic weighted average shares outstanding (in shares)	606,080	615,822	615,768	614,173
Diluted weighted average shares outstanding (in shares)	712,547	737,180	723,317	735,599
Dividends declared per common share	$ 0.18	$ 0.18	$ 0.64	$ 0.36
Dividends paid per common share	$ 0.18	$ 0.18	$ 0.64	$ 0.36