Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.2.0.727
Subsequent Events (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jul. 29, 2015
Jul. 08, 2015
Jun. 29, 2015
Jun. 23, 2015
Nov. 24, 2014
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Jul. 31, 2015
Subsequent Event [Line Items]                    
Advances on revolving line of credit               $ 45,072,666 $ 2,535,671  
Dividends declared per share (in dollars per share)           $ 0.135 $ 0.129 $ 0.265 $ 0.254  
Common Stock [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Dividends declared per share (in dollars per share) $ 0.135                  
Series A Cumulative Redeemable Preferred Stock [Member] | Depositary Shares [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Depositary stock, dividends declared per share (in dollars per share) $ 0.460937500                  
Series A Cumulative Redeemable Preferred Stock [Member] | Preferred Stock [Member]                    
Subsequent Event [Line Items]                    
Coupon rate           7.375%   7.375%    
London Interbank Offered Rate (LIBOR) [Member]                    
Subsequent Event [Line Items]                    
Basis spread on variable rate         3.50%          
Line of Credit [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Maximum borrowing capacity   $ 153,000,000                
Revolving Credit Facility [Member]                    
Subsequent Event [Line Items]                    
Advances on revolving line of credit     $ 42,000,000 $ 42,000,000            
Revolving Credit Facility [Member] | Line of Credit [Member]                    
Subsequent Event [Line Items]                    
Maximum borrowing capacity           $ 93,000,000   $ 93,000,000    
Revolving Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Maximum borrowing capacity   105,000,000                
Available borrowing capacity   108,000,000                
Term Loan [Member] | Line of Credit [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Advances on revolving line of credit   $ 45,000,000                
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]                    
Subsequent Event [Line Items]                    
Basis spread on variable rate         2.75%          
Minimum [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Basis spread on variable rate   2.75%                
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]                    
Subsequent Event [Line Items]                    
Basis spread on variable rate         3.50%          
Maximum [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Basis spread on variable rate   3.75%                
Parent Entity [Member] | Term Loan [Member] | Line of Credit [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Maximum borrowing capacity   $ 45,000,000                
Subsidiary Entity [Member] | Term Loan [Member] | Line of Credit [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Maximum borrowing capacity   $ 3,000,000                
Mowood/Omega Revolver [Member] | Revolving Credit Facility [Member] | Line of Credit [Member] | Subsequent Event [Member]                    
Subsequent Event [Line Items]                    
Maximum borrowing capacity                   $ 1,500,000