Property and equipment: (Tables)

12 Months Ended

Sep. 30, 2012

Property and equipment:

Schedule of property and equipment, net

	September 30, 2012			September 30, 2011
Computer equipment	$	2,090,556		$	2,055,128
Corporate airplane		3,082,186			3,082,186
Furniture and office equipment		1,076,849			1,074,279
Manufacturing facility		5,605,616			5,605,616
Equipment		4,378,714			4,205,243
Land		1,021,245			1,021,245
		17,255,166			17,043,697
Less: Accumulated depreciation and amortization		(10,040,788	)		(9,567,335	)
	$	7,214,378		$	7,476,362