CONSOLIDATED STATEMENTS OF INCOME - USD ($)	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Revenue	$ 116,800,046	$ 93,273,139
Cost of revenues	105,935,841	84,761,921
Gross profit	10,864,205	8,511,218
Selling and administrative expenses	6,584,334	6,355,609
Income from operations	4,279,871	2,155,609
Other income (expense)
Interest income	1,278	1,191
Other nonoperating income	12,421	8,417
Interest expense	(761,079)	(841,975)
Gain on sale of equipment	179,031	37,477
Other income (expense), Total	(568,349)	(794,890)
Income from continuing operations before income taxes	3,711,522	1,360,719
Income tax expense (benefit)	1,597,332	(2,342,244)
Income from continuing operations	2,114,190	3,702,963
Dividends on preferred stock	309,000	386,250
Income from continuing operations available to common shareholders	1,805,190	3,316,713
Income (loss) from discontinued operations net of tax benefit of $26,340 in 2015 and tax expense of $54,766 in 2014	26,340	(54,766)
Net income available to common shareholders	$ 1,831,530	$ 3,261,947
Weighted average shares outstanding- basic (in shares)	14,239,836	14,392,194
Weighted average shares-diluted (in shares)	17,673,169	17,802,443
Earning per share from continuing operations available to common shareholders (in dollars per share)	$ 0.127	$ 0.230
Earnings per share from continuing operations-diluted available to common shareholders (in dollars per share)	0.102	0.186
Earnings per share available to common shareholders (in dollars per share)	0.129	0.227
Earnings per share-diluted available to common shareholders (in dollars per share)	$ 0.104	$ 0.183