Preferred Stock and Units - Schedule of Series of Cumulative Redeemable Perpetual Preferred Units (Detail) - $ / shares		2 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Jul. 15, 2019	May 31, 2019	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
8.25% Series D Cumulative Redeemable Perpetual Preferred Units [Member]
Preferred Units [Line Items]
Preferred Units, Quarterly Distributions Per Unit	$ 0.41823
Sotherly Hotels LP [Member] | 8% Series B Cumulative Redeemable Perpetual Preferred Units [Member]
Preferred Units [Line Items]
Preferred Units, Per Annum Rate			8.00%	8.00%	8.00%
Preferred Units, Liquidation Preference			$ 25	$ 25	$ 25
Preferred Units, Number of Units Issued			1,610,000	1,610,000	1,610,000
Preferred Units, Number of Units Outstanding			1,610,000	1,610,000	1,610,000
Preferred Units, Quarterly Distributions Per Unit			$ 0.500000
Sotherly Hotels LP [Member] | 7.875% Series C Cumulative Redeemable Perpetual Preferred Units [Member]
Preferred Units [Line Items]
Preferred Units, Per Annum Rate			7.875%	7.875%	7.875%
Preferred Units, Liquidation Preference			$ 25	$ 25	$ 25
Preferred Units, Number of Units Issued			1,554,610	1,554,610	1,352,141
Preferred Units, Number of Units Outstanding			1,554,610	1,554,610	1,352,141
Preferred Units, Quarterly Distributions Per Unit			$ 0.492188
Sotherly Hotels LP [Member] | 8.25% Series D Cumulative Redeemable Perpetual Preferred Units [Member]
Preferred Units [Line Items]
Preferred Units, Per Annum Rate		8.25%	8.25%	8.25%	8.25%
Preferred Units, Liquidation Preference			$ 25	$ 25	$ 25
Preferred Units, Number of Units Issued			1,200,000	1,200,000	0
Preferred Units, Number of Units Outstanding			1,200,000	1,200,000	0
Preferred Units, Quarterly Distributions Per Unit			$ 0.515625