Note 1 - The Company (Details)	6 Months Ended
	Jun. 30, 2013	Feb. 28, 2011 acre	Jun. 30, 2012 Medical office park [Member] sqft	Jun. 30, 2013 Second Medical Office Park [Member] sqft	Jun. 30, 2013 Multitenant Industrial Park [Member] sqft	Jun. 30, 2013 St. James, New York [Member] acre
Note 1 - The Company (Details) [Line Items]
Number of Operating Segments	1
General Ownership Percentage in Industrial and Medical Office Parks	100.00%
Area of Real Estate Property (in Square Feet)		35.1	91,796	39,329	128,586	68
Area of Real Estate Property (in Acres)		35.1	91,796	39,329	128,586	68
Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest	9.32%