Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets (Details Textual)

v2.4.0.6
Real Estate and Intangible Assets (Details Textual) (USD $)
3 Months Ended 1 Months Ended 3 Months Ended
Mar. 31, 2013
Property
Mar. 31, 2012
Property
Jan. 31, 2013
Champaign, Illinois [Member]
Jan. 31, 2013
Baytown, Texas [Member]
Mar. 31, 2013
One properties acquired [Member]
Real Estate and Intangible Assets (Textual) [Abstract]          
Acquisition-related costs excluded in pro-forma earnings $ 185,000 $ 160,000     $ 200,000
Option to extend lease term     11 years    
Period for lease expiration     2013-12    
Extended lease expiration month year     2024-12    
Lease expiration date       Apr. 30, 2013  
Amount of annualized straight line rents over the life of the lease     1,400,000    
Leasing commission paid 384,000 1,101,000 400,000    
Real Estate and Intangible Assets (Additional Textual) [Abstract]          
Number of properties acquired 1 1      
Total annual property taxes for all properties not paid by tenants $ 9,000,000