Income Taxes (Details Textual) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Other Tax Carryforward [Line Items]
Federal income tax benefit received from the Internal Revenue Service	$ (150,816)	$ 75,190
Income Taxes (Textual) [Abstract]
Net deferred tax assets	24,125,000	25,987,000
Federal income tax carryforwards	53,430,000
Excess tax benefits from stock-based compensation	179,000	182,191
Federal R&D tax credits	1,731,000
State R&D tax credits	720,000
Tax provision	0.00%
Net of loss carry back number of years option one	1 year
Net of loss carry back number of years option two	2 years
Net of loss carry back number of years option three	3 years
Net operating loss carry forwards maximum number of years	20 years
Federal Income tax benefit	152,333
Federal Income Tax Receivable	40,324
Unrecognized tax benefits	0
Material changes	0
Internal Revenue Service (IRS) [Member]
Other Tax Carryforward [Line Items]
Federal income tax benefit received from the Internal Revenue Service	$ 112,009