Quarterly report pursuant to Section 13 or 15(d)

Stockholder's Equity (Details)

v3.5.0.2
Stockholder's Equity (Details)
 9 Months Ended
Dec. 01, 2015
Jan. 27, 2015
USD ($)
$ / shares
shares
Sep. 30, 2016
USD ($)
$ / shares
shares
Feb. 18, 2016
USD ($)
Dec. 31, 2015
USD ($)
$ / shares
shares
Class of Stock [Line Items]          
Preferred stock, authorized | shares     10,000,000    
Preferred stock, par value | $ / shares     $ 0.001    
Net offering proceeds   $ 54,200,000      
Shares of common stock offered (in shares) | shares     11,876,389   11,939,697
Reverse stock split ratio 5        
Repurchase of common stock     $ 2,041,851    
Aggregate offering price of shelf registration       $ 600,000,000  
Reinvestment of dividends paid to common stockholders     $ 494,251    
CORRPrA [Member]          
Class of Stock [Line Items]          
Preferred stock, par value | $ / shares     $ 23    
Series A Cumulative Redeemable Preferred Stock [Member]          
Class of Stock [Line Items]          
Preferred stock, authorized | shares     10,000,000   10,000,000
Preferred stock, par value | $ / shares     $ 0.001   $ 0.001
Preferred stock, issued | shares   22,500 22,500   22,500
Preferred stock, liquidation preference (in dollars per share) | $ / shares     $ 2,500   $ 2,500
Depositary Shares [Member]          
Class of Stock [Line Items]          
Percent equivalent of preferred shares     1.00%    
Annual dividend, per share (in dollars per share) | $ / shares   $ 1.84375      
Preferred Stock [Member] | Series A Cumulative Redeemable Preferred Stock [Member]          
Class of Stock [Line Items]          
Coupon rate percentage   7.375% 7.375%    
Common Stock [Member]          
Class of Stock [Line Items]          
Authorized amount of shares to be repurchased         $ 10,000,000
Repurchase of common stock (in shares) | shares     90,613    
Repurchase of common stock     $ 91    
Reinvestment of distributions to stockholders (in shares) | shares     24,754    
Reinvestment of dividends paid to common stockholders     $ 25    
Underwritten Public Offering [Member] | Depositary Shares [Member]          
Class of Stock [Line Items]          
Shares sold in offering (in shares) | shares   2,250,000      
Preferred stock, liquidation preference (in dollars per share) | $ / shares   $ 25.00      
Dividend Reinvestment Plan [Member]          
Class of Stock [Line Items]          
Reinvestment of distributions to stockholders (in shares) | shares     24,754    
Reinvestment of dividends paid to common stockholders     $ 494,000    
Shelf registration after dividend reinvestment plan reduction     $ 599,500,000