Distributions (Details Narrative) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Dividends Payable [Line Items]
Declaration Date	Jan. 25, 2018
Record Date	Mar. 15, 2018
Payment Date	Feb. 15, 2018
Preferred stock, dividend declared per share, paid	$ (0.52)	$ (0.51)	$ (0.32)
January 25, 2018 [Member]
Dividends Payable [Line Items]
Dividends declared per share	0.18
January 25, 2018 [Member] | Series B Preferred Shares [Member]
Dividends Payable [Line Items]
Preferred stock, dividend declared per share, paid	0.50
January 25, 2018 [Member] | Series C Preferred Stock [Member]
Dividends Payable [Line Items]
Preferred stock, dividend declared per share, paid	$ 0.421875