Note 7 - NIH Grant Funding (Detail) (USD $)	3 Months Ended		9 Months Ended		135 Months Ended	12 Months Ended	59 Months Ended		1 Months Ended	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Aug. 31, 2013 First NIH Grant [Member]	Aug. 31, 2012 First NIH Grant [Member]	Sep. 30, 2012 First NIH Grant [Member]	Sep. 30, 2012 Second NIH Grant [Member]	Aug. 31, 2013 Second NIH Grant [Member]
Project Period Covered by Grants							5 years			1 year
Project Extension Period						1 year
Grant Award							$ 20,400,000
Unused Grant Funds								1,900,000	1,800,000
Revenue from Grants	$ 638,000	$ 1,297,006	$ 2,197,761	$ 3,943,041	$ 22,509,453				$ 1,900,000