Note 12 - Stockholders' Equity (Details) (USD $)	141 Months Ended
	Jun. 30, 2013	Jun. 05, 2013	Feb. 01, 2011
Stockholders' Equity Note [Abstract]
Treasury Stock, Shares, Acquired	4,579,563
Treasury Stock, Value, Acquired, Cost Method (in Dollars)	$ 53,398,000
Stock Repurchase Program Number of Additional Shares Authorized to be Repurchased			300,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	319,396
Minimum Percentage of Common Stock Acquired by a Person or Group which Triggers Exercise of New Rights		15.00%
New Right Purchase Price (in Dollars per share)		$ 100.00
Common Stock, Capital Shares Reserved for Future Issuance	9,886,354	10,188,600