Federal Income Taxes (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Preferred Dividends Paid, net	$ 14,563,645	$ 7,556,588	$ 7,556,588
Preferred stock, dividend declared per share, paid	$ (0.51)	$ (0.32)	$ (0.34)
S&F Tax [Member]
Amount of operating losses of S&F	$ 2,307,104	$ 3,550,961	$ 3,946,571
Federal state and franchise taxes included in general and administrative expenses	5,000	15,000	15,000
Series A Preferred Stock [Member]
Preferred Dividends Paid, net	$ 7,556,588	$ 7,556,588	$ 7,556,588
Preferred stock, dividend declared per share, paid	$ 2.0625	$ 2.0625	$ 2.0625
Percentage of distributions characterized as ordinary income	1.79472	1.36264	1.66551
Percentage of distributions characterized as capital gains	$ 0.26778	0.03439	$ 0.39699
Percentage of distributions characterized as return capital		$ 0.66547
Series B Preferred Stock [Member]
Preferred Dividends Paid, net	$ 7,007,057
Preferred stock, dividend declared per share, paid	$ 2.22466
Percentage of distributions characterized as ordinary income	1.93582
Percentage of distributions characterized as capital gains	$ 0.28884