Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Condensed Consolidated Statements of Operations
Sales (including excise taxes of $100.2 million and $96.1 million, and $285.4 million and $272.7 million, respectively)	$ 316,031,197	$ 307,112,774	$ 892,817,669	$ 866,505,090
Cost of sales	296,220,406	287,211,769	835,480,069	808,750,009
Gross profit	19,810,791	19,901,005	57,337,600	57,755,081
Selling, general and administrative expenses	16,065,285	15,845,201	47,351,952	47,096,958
Depreciation and amortization	598,061	552,888	1,791,708	1,780,309
Total operating expenses	16,663,346	16,398,089	49,143,660	48,877,267
Operating income	3,147,445	3,502,916	8,193,940	8,877,814
Other expense (income):
Interest expense	309,445	361,756	874,489	1,105,707
Other (income), net	(49,487)	(47,841)	(225,682)	(292,979)
Total other expenses (income)	259,958	313,915	648,807	812,728
Income from operations before income tax expense	2,887,487	3,189,001	7,545,133	8,065,086
Income tax expense	1,255,000	1,343,000	3,236,000	3,316,000
Net income	1,632,487	1,846,001	4,309,133	4,749,086
Preferred stock dividend requirements	(48,642)	(66,907)	(156,041)	(201,454)
Net income available to common shareholders	$ 1,583,845	$ 1,779,094	$ 4,153,092	$ 4,547,632
Basic earnings per share available to common shareholders (in dollars per share)	$ 2.54	$ 2.92	$ 6.67	$ 7.38
Diluted earnings per share available to common shareholders (in dollars per share)	$ 2.19	$ 2.37	$ 5.73	$ 6.06
Basic weighted average shares outstanding (in shares)	623,115	608,271	622,833	615,913
Diluted weighted average shares outstanding (in shares)	744,732	779,106	751,946	783,987