Consolidated Statements of Changes in Equity - USD ($)	Total	Common Stock [Member]	Additional Paid-In-Capital [Member]	Distributions in Excess of Retained Earnings [Member]	Noncontrolling Interest [Member]
Balances, beginning at Dec. 31, 2012	$ 37,053,953	$ 99,998	$ 57,020,979	$ (27,389,338)	$ 7,322,314
Balances, shares, beginning at Dec. 31, 2012		9,999,786
Net income (loss)	(4,473,592)			(3,483,969)	(989,623)
Conversion of units in Operating Partnership to shares of common stock		$ 1,316	337,449		(338,765)
Conversion of units in Operating Partnership to shares of common stock, shares		131,641
Redemption of units in Operating Partnership	(32,900)				(32,900)
Issuance of units for Houston purchase	153,636				153,636
Issuance of restricted and unrestricted common stock awards	176,440	$ 755	175,685
Issuance of restricted and unrestricted common stock awards, shares		75,500
Dividends and distributions declared	(2,022,742)			(1,577,466)	(445,276)
Balances, ending at Dec. 31, 2013	30,854,795	$ 102,069	57,534,113	(32,450,773)	5,669,386
Balances, shares, ending at Dec. 31, 2013		10,206,927
Net income (loss)	(738,509)			(584,671)	(153,838)
Conversion of units in Operating Partnership to shares of common stock		$ 3,100	755,750		(758,850)
Conversion of units in Operating Partnership to shares of common stock, shares		310,000
Redemption of units in Operating Partnership	(25,621)				(25,621)
Issuance of unrestricted common stock awards	147,360	$ 248	147,112
Issuance of unrestricted common stock awards, shares		24,750
Issuance of restricted common stock awards	78,285	$ 120	78,165
Issuance of restricted common stock awards, shares		12,000
Issuance of common stock through ATM offering, net	124,911	$ 172	124,739
Issuance of common stock through ATM offering, net, shares		17,255
Amortization of restricted stock award	19,920		19,920
Dividends and distributions declared	(2,951,284)			(2,352,869)	(598,415)
Balances, ending at Dec. 31, 2014	27,509,857	$ 105,709	58,659,799	(35,388,313)	4,132,662
Balances, shares, ending at Dec. 31, 2014		10,570,932
Net income (loss)	6,397,653			5,356,666	1,040,987
Conversion of units in Operating Partnership to shares of common stock		$ 3,500	588,162		(591,662)
Conversion of units in Operating Partnership to shares of common stock, shares		350,000
Issuance of unrestricted common stock awards	194,200	$ 264	193,936
Issuance of unrestricted common stock awards, shares		26,350
Issuance of restricted common stock awards	71,858	$ 98	71,760
Issuance of restricted common stock awards, shares		9,750
Issuance of common stock through ATM offering, net	682,208	$ 986	681,222
Issuance of common stock through ATM offering, net, shares		98,682
Issuance of common stock from equity offering	22,568,609	$ 34,350	22,534,259
Issuance of common stock from equity offering, shares		3,435,000
Amortization of restricted stock award	19,920		19,920
Dividends and distributions declared	(4,585,937)			(3,859,187)	(726,750)
Balances, ending at Dec. 31, 2015	$ 52,858,368	$ 144,907	$ 82,749,058	$ (33,890,834)	$ 3,855,237
Balances, shares, ending at Dec. 31, 2015		14,490,714