Stockholders' Equity (Details) - USD ($)	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016	May 31, 2018
Equity, Class of Treasury Stock [Line Items]
Purchase of additional common stock authorized				$ 1,500,000
Purchase of treasury stock	$ 1,219,228	$ 601,853	$ 117,165
Maximum [Member]
Equity, Class of Treasury Stock [Line Items]
Purchase of common stock, approval level				$ 1,500,000
2010 Restricted Stock Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Purchase of treasury stock	$ 1,219,228
Purchase of treasury stock, shares	63,404