Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Condensed Consolidated Statements of Operations
Sales (including excise taxes of $85.7 million and $87.2 million, and $183.1 million and $185.2 million, respectively)	$ 272,421,788	$ 274,568,151	$ 578,047,345	$ 576,786,472
Cost of sales	254,801,826	256,271,131	540,786,320	539,259,663
Gross profit	17,619,962	18,297,020	37,261,025	37,526,809
Selling, general and administrative expenses	15,812,174	15,438,195	32,304,437	31,286,667
Depreciation and amortization	628,834	599,785	1,252,874	1,193,647
Total operating expenses	16,441,008	16,037,980	33,557,311	32,480,314
Operating income	1,178,954	2,259,040	3,703,714	5,046,495
Other expense (income):
Interest expense	222,624	248,992	524,619	565,044
Other (income), net	(38,955)	(114,846)	(69,186)	(176,195)
Total other expenses (income)	183,669	134,146	455,433	388,849
Income from operations before income tax expense	995,285	2,124,894	3,248,281	4,657,646
Income tax expense	464,000	911,000	1,429,000	1,981,000
Net income	531,285	1,213,894	1,819,281	2,676,646
Preferred stock dividend requirements	(48,108)	(48,108)	(97,285)	(107,399)
Net income available to common shareholders	$ 483,177	$ 1,165,786	$ 1,721,996	$ 2,569,247
Basic earnings per share available to common shareholders (in dollars per share)	$ 0.79	$ 1.87	$ 2.79	$ 4.13
Diluted earnings per share available to common shareholders (in dollars per share)	$ 0.72	$ 1.63	$ 2.46	$ 3.55
Basic weighted average shares outstanding (in shares)	611,432	623,115	616,888	622,692
Diluted weighted average shares outstanding (in shares)	737,461	743,195	739,223	754,881