Federal Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of U.S. GAAP net income to taxable income
U.S. GAAP net income	$ (733,004)	$ 800,877	$ 1,619,439	$ 4,149,511	$ 1,299,570	$ 1,405,754	$ 2,019,036	$ 1,749,697	$ 5,836,823	$ 6,474,057	$ 3,696,263
Add: U.S. GAAP net loss of taxable REIT subsidiary included above									2,746,526	3,081,837	3,135,742
U.S. GAAP net income from REIT operations									8,583,349	9,555,894	6,832,005
Stock option expense									850,349	573,244	295,042
Acquisition costs and other book / tax differences, net									1,641,635	(344,027)	(1,418,553)
Taxable income before adjustments									11,075,333	9,785,111	5,708,494
Less: Capital gains									(3,460,000)	(4,146,773)	(1,750,781)
Adjusted taxable income subject to 90% dividend requirement									$ 7,615,333	$ 5,638,338	$ 3,957,713