Note 3 - Real Estate (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended		3 Months Ended	6 Months Ended
	Jul. 31, 2012	Apr. 30, 2012 sqft	Dec. 31, 2011	Jun. 30, 2012	Jul. 10, 2012 sqft
Number of Vacant Properties Sold During Period	3	4	1	10
Area of Real Estate Property (in Square feet)		145,000			149,000
Proceeds from Divestiture of Businesses	$ 18,500	$ 19,350
Gain (Loss) on Disposition of Property	$ 3,389	$ 7,989