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Preferred Stock and Units - Additional Information (Detail) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 23, 2016
Jun. 30, 2017
Mar. 31, 2017
Jun. 30, 2017
Dec. 31, 2016
Preferred Units [Line Items]          
Preferred stock, shares issued   1,610,000   1,610,000 1,610,000
Preferred stock, shares outstanding   1,610,000   1,610,000 1,610,000
Preferred stock, shares authorized   11,000,000   11,000,000  
Preferred stock, dividend rate percentage       8.00%  
Preferred stock, liquidation preference per share   $ 25.00   $ 25.00  
Preferred unit distributions   $ 805,000   $ 1,610,000  
Sotherly Hotels LP [Member]          
Preferred Units [Line Items]          
Operating partnership preferred partnership units issued   1,610,000   1,610,000 1,610,000
Operating partnership preferred partnership units outstanding   1,610,000   1,610,000 1,610,000
Sotherly Hotels LP [Member] | 8% Series B Cumulative Redeemable Perpetual Preferred Units [Member]          
Preferred Units [Line Items]          
Preferred units, dividend rate percentage       8.00% 8.00%
Preferred units, liquidation preference per units   $ 25   $ 25 $ 25
Preferred dividend distributed   $ 0.50 $ 0.50    
Preferred unit distributions         $ 0
8% Series B Cumulative Redeemable Perpetual Preferred Stock [Member]          
Preferred Units [Line Items]          
Preferred stock, shares issued 1,610,000        
Preferred stock, par value $ 0.01        
Preferred stock, dividend rate percentage 8.00%        
Proceeds from sale of preferred stock, net $ 37,800,000