Note 4 - Treasury Stock (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	5 Months Ended
	Feb. 29, 2012	Jun. 30, 2012
Stock Repurchase Program, Authorized Amount	$ 50.0
Treasury Stock, Shares, Acquired (in Shares)		3,530,509
Treasury Stock, Value, Acquired, Cost Method		$ 6.89