Note 5 - Stockholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended			1 Months Ended		3 Months Ended	6 Months Ended	0 Months Ended
	Jun. 14, 2013	Mar. 15, 2013	Feb. 19, 2008	Jun. 30, 2012	May 31, 2012	Aug. 31, 2013	Aug. 31, 2013	Sep. 13, 2013 Subsequent Event [Member]
Note 5 - Stockholders' Equity (Details) [Line Items]
Stock Repurchase Program, Authorized Amount (in Dollars)			$ 3.0
Stock Repurchased During Period, Shares (in Shares)				129,500	33,800	0	0
Treasury Stock Acquired, Average Cost Per Share				$ 10.45	$ 10.73
Common Stock, Dividends, Per Share, Cash Paid		$ 0.11						$ 0.11
Common Stock, Dividends, Per Share, Declared	$ 0.11