Note 13 - Convertible Notes Payable (Detail) (USD $)	3 Months Ended		12 Months Ended			1 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Sep. 30, 2013	Sep. 30, 2012	Jan. 25, 2013	Jun. 30, 2012 June Convertible Notes Payable [Member]	Sep. 30, 2012 June Convertible Notes Payable [Member]	Jun. 30, 2008 June Convertible Notes Payable [Member]	Sep. 30, 2012 Issuance [Member]	Apr. 30, 2012 Issuance [Member]	Mar. 31, 2012 Issuance [Member]	Mar. 31, 2013 Series E Preferred Stock [Member]
Convertible Notes Payable, Noncurrent				$ 6,800,000	$ 5,000,000			$ 3,000,000	$ 1,000,000	$ 700,000	$ 3,300,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in Shares)								468,750
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per Item)	0.50							2.00
Debt Instrument, Convertible, Beneficial Conversion Feature						789,000
Debt and Capital Lease Obligations							1,200,000
Debt Instrument, Periodic Payment, Principal			1,800,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%
Convertible Preferred Stock, Shares Issued upon Conversion (in Shares)												100,000
Warrants and Rights Outstanding	10,000,000
Interest Expense, Debt	$ 44,000	$ 150,000		$ 575,000