Note 3 - Long-Term Debt (Detail) (USD $)	1 Months Ended			6 Months Ended	9 Months Ended		24 Months Ended	61 Months Ended									1 Months Ended		13 Months Ended
	Oct. 30, 2012	Jun. 30, 2011	Jun. 30, 2006	Jun. 30, 2011	Sep. 30, 2012	Jun. 30, 2011	Sep. 30, 2012	Jun. 30, 2011	Dec. 31, 2011	Jul. 25, 2011	Oct. 31, 2010	Oct. 19, 2010	Sep. 30, 2012 First 4.55 Million of Debt [Member]	Sep. 30, 2012 Remainder of Principal After Initial Conversion [Member]	Oct. 31, 2010 Maximum Allowable [Member]	Jun. 30, 2011 Convertible [Member]	Oct. 31, 2010 First Tranche [Member]	Jun. 29, 2013 First Tranche [Member]	Nov. 30, 2011 Second Tranche [Member]	Jun. 29, 2013 Second Tranche [Member]	Oct. 31, 2011 Second Tranche [Member]
Proceeds from Convertible Debt			$ 36,400,000					$ 36,400,000
Debt Instrument, Interest Rate, Stated Percentage	6.00%				6.00%		6.00%
Convertible Debt					4,550,000		4,550,000					20,620,000			2,500,000	4,000,000
Debt Instrument, Convertible, Number of Equity Instruments		320,000			650,000	290,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share)											$ 13.50		$ 7	$ 35				$ 13.50		$ 12.50
Line of Credit Facility, Maximum Borrowing Capacity										3,000,000		10,000,000
Line of Credit Facility, Increase, Additional Borrowings (in Dollars)	5,000,000			2,000,000			7,000,000										5,000,000		2,000,000
Line of Credit Facility, Remaining Borrowing Capacity		5,000,000		5,000,000		5,000,000		5,000,000													5,000,000
Line of Credit Facility, Interest Rate During Period					6.00%
Other Long-term Debt		10,000,000		10,000,000		10,000,000		10,000,000
Debt Instrument, Unamortized Discount					$ 2,512,000		$ 2,512,000		$ 4,641,000		$ 3,200,000